a = 7567025607324980273 = 690379b2b2e3d431

c = 5279421 = 508ebd

m = 18446744073709551616 = 10000000000000000

X

gcd(c, m) = 1

(a - 1) is divisible by all prime factors of m (= 2

(a - 1) is divisible by 4, and m is a multiple of 4.

=> LCG has a full period for all seed values.