51375921402624 has 288 divisors, whose sum is σ = 177146400238080. Its totient is φ = 12836551458816.

The previous prime is 51375921402623. The next prime is 51375921402629. The reversal of 51375921402624 is 42620412957315.

It is not an unprimeable number, because it can be changed into a prime (51375921402623) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18017337 + ... + 20673080.

Almost surely, 2^{51375921402624} is an apocalyptic number.

It is an amenable number.

51375921402624 is an abundant number, since it is smaller than the sum of its proper divisors (125770478835456).

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

51375921402624 is a wasteful number, since it uses less digits than its factorization.

51375921402624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38690475 (or 38690461 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 51.

The spelling of 51375921402624 in words is "fifty-one trillion, three hundred seventy-five billion, nine hundred twenty-one million, four hundred two thousand, six hundred twenty-four".