51470725562172 has 72 divisors (see below), whose sum is σ = 151498739429856. Its totient is φ = 14428451366784.

The previous prime is 51470725562143. The next prime is 51470725562183. The reversal of 51470725562172 is 27126552707415.

51470725562172 is a `hidden beast` number, since 5 + 1 + 4 + 7 + 0 + 7 + 2 + 5 + 5 + 621 + 7 + 2 = 666.

It is a super-2 number, since 2×51470725562172² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1926863163 + ... + 1926889874.

It is an arithmetic number, because the mean of its divisors is an integer number (2104149158748).

Almost surely, 2^{51470725562172} is an apocalyptic number.

It is an amenable number.

51470725562172 is an abundant number, since it is smaller than the sum of its proper divisors (100028013867684).

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

51470725562172 is a wasteful number, since it uses less digits than its factorization.

51470725562172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3853753107 (or 3853753102 counting only the distinct ones).

The product of its (nonzero) digits is 8232000, while the sum is 54.

The spelling of 51470725562172 in words is "fifty-one trillion, four hundred seventy billion, seven hundred twenty-five million, five hundred sixty-two thousand, one hundred seventy-two".