51516180275870 has 32 divisors (see below), whose sum is σ = 94899618126720. Its totient is φ = 20124281630880.

The previous prime is 51516180275831. The next prime is 51516180275881. The reversal of 51516180275870 is 7857208161515.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5921516 + ... + 11751455.

It is an arithmetic number, because the mean of its divisors is an integer number (2965613066460).

Almost surely, 2^{51516180275870} is an apocalyptic number.

51516180275870 is a deficient number, since it is larger than the sum of its proper divisors (43383437850850).

51516180275870 is a wasteful number, since it uses less digits than its factorization.

51516180275870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17679800.

The product of its (nonzero) digits is 4704000, while the sum is 56.

The spelling of 51516180275870 in words is "fifty-one trillion, five hundred sixteen billion, one hundred eighty million, two hundred seventy-five thousand, eight hundred seventy".