This number is a prime.
4294945999 is the largest prime P < 2^32 such that SOD(P) = SOD(P^2); P^2 = 18446561134326108001. Challenge by Dale. [Rivera]
4294945999 is the largest prime P < 2^32 such that SOD(P) = SOD(P^2); P^2 = 18446561134326108001. Challenge by Dale. [Rivera]