top and ps commands may show weird huge %CPU and TIME values

Issue

top, w and ps commands may show weird huge %CPU and TIME values:

# ps auxwww
USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
root         1 296197453  0.0 19360 1540 ?     Ss   13:15 13800504:45 /sbin/init
root         2 88028863  0.0  0     0 ?        S    13:15 9270466:37 [kthreadd]
root         4 6749104  0.0   0     0 ?        S    13:15 41582042:33 [ksoftirqd/0]
root         5  0.0  0.0      0     0 ?        S    13:15   0:00 [migration/0]
root         6  0.0  0.0      0     0 ?        S    13:15   0:00 [watchdog/0]
root         7  0.0  0.0      0     0 ?        S    13:15   0:00 [migration/1]
root         9 2115534  0.0   0     0 ?        S    13:15 1500971:41 [ksoftirqd/1]
root      2088 414932197  0.0 0     0 ?        S    13:15 24771159:35 [kauditd]
root      2470 311725310  0.0 27636 856 ?      S<sl 13:16 21605557:33 auditd
root      2486 6511132  0.0 255416 1876 ?      Sl   13:16 4591433:55 /sbin/rsyslogd -i /var/run/syslogd.pid -c 5
root      2498 425807  0.0 10916  684 ?        Ss   13:16 300194:21 irqbalance
rpc       2518 8725548  0.0 18972 892 ?        Ss   13:16 22615553:11 rpcbind
rpcuser   2539 3549571  0.0 23344 1340 ?       Ss   13:16 18966489:22 rpc.statd

# w
 12:52:16 up 1 day,  1:39,  5 users,  load average: 0.83, 0.31, 0.11
USER     TTY      FROM              LOGIN@   IDLE   JCPU   PCPU WHAT
root  pts/0     :0               Tue11   08:33 4:40m   236852days 236852days -bash
root  pts/1     hostname               Tue11   08:33 0.00s 910612days 4586days sshd: root [priv]