51179960331 has 12 divisors (see below), whose sum is σ = 74939303608. Its totient is φ = 33652576224.

The previous prime is 51179960309. The next prime is 51179960371. The reversal of 51179960331 is 13306997115.

It is a happy number.

51179960331 is a `hidden beast` number, since 5 + 1 + 1 + 7 + 9 + 9 + 603 + 31 = 666.

It is not a de Polignac number, because 51179960331 - 2⁹ = 51179959819 is a prime.

It is a super-2 number, since 2×51179960331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51179960371) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38949085 + ... + 38950398.

Almost surely, 2^51179960331 is an apocalyptic number.

51179960331 is a deficient number, since it is larger than the sum of its proper divisors (23759343277).

51179960331 is a wasteful number, since it uses less digits than its factorization.

51179960331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77899562 (or 77899559 counting only the distinct ones).

The product of its (nonzero) digits is 153090, while the sum is 45.

The spelling of 51179960331 in words is "fifty-one billion, one hundred seventy-nine million, nine hundred sixty thousand, three hundred thirty-one".