51504601264 has 40 divisors (see below), whose sum is σ = 101535521648. Its totient is φ = 25303829760.

The previous prime is 51504601261. The next prime is 51504601273. The reversal of 51504601264 is 46210640515.

It is not an unprimeable number, because it can be changed into a prime (51504601261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365074 + ... + 486094.

Almost surely, 2^51504601264 is an apocalyptic number.

It is an amenable number.

51504601264 is a deficient number, since it is larger than the sum of its proper divisors (50030920384).

51504601264 is a wasteful number, since it uses less digits than its factorization.

51504601264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121493 (or 121487 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 51504601264 in words is "fifty-one billion, five hundred four million, six hundred one thousand, two hundred sixty-four".