51904776936 has 32 divisors (see below), whose sum is σ = 135403767360. Its totient is φ = 16549348992.

The previous prime is 51904776887. The next prime is 51904776943. The reversal of 51904776936 is 63967740915.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47014645 + ... + 47015748.

It is an arithmetic number, because the mean of its divisors is an integer number (4231367730).

Almost surely, 2^51904776936 is an apocalyptic number.

It is an amenable number.

51904776936 is an abundant number, since it is smaller than the sum of its proper divisors (83498990424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51904776936 is a wasteful number, since it uses less digits than its factorization.

51904776936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94030425 (or 94030421 counting only the distinct ones).

The product of its (nonzero) digits is 8573040, while the sum is 57.

The spelling of 51904776936 in words is "fifty-one billion, nine hundred four million, seven hundred seventy-six thousand, nine hundred thirty-six".