Plateau and Depression Prime (PDP)
http://www.worldofnumbers.com/deplat.htm
PFGW Version 3.4.2.64BIT.20101019.Win_Dev [GWNUM 26.4]
Primality testing (67*10^72772+23)/9 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 5
Running N+1 test using discriminant 19, base 1+sqrt(19)
Calling N-1 BLS with factored part 0.01% and helper 0.00% (0.02% proof)
(67*10^72772+23)/9 is Fermat and Lucas PRP! (1645.1859s+0.0020s)
Done.

To be completed...