51157706596 has 12 divisors (see below), whose sum is σ = 89528831980. Its totient is φ = 25578040320.

The previous prime is 51157706557. The next prime is 51157706617. The reversal of 51157706596 is 69560775115.

It can be written as a sum of positive squares in 2 ways, for example, as 44126884096 + 7030822500 = 210064^2 + 83850^2 .

It is a super-2 number, since 2×51157706596² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48585 + ... + 323536.

Almost surely, 2^51157706596 is an apocalyptic number.

It is an amenable number.

51157706596 is a deficient number, since it is larger than the sum of its proper divisors (38371125384).

51157706596 is a wasteful number, since it uses less digits than its factorization.

51157706596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406494 (or 406492 counting only the distinct ones).

The product of its (nonzero) digits is 1984500, while the sum is 52.

The spelling of 51157706596 in words is "fifty-one billion, one hundred fifty-seven million, seven hundred six thousand, five hundred ninety-six".