51607764315 has 12 divisors (see below), whose sum is σ = 89453458224. Its totient is φ = 27524140944.

The previous prime is 51607764311. The next prime is 51607764347. The reversal of 51607764315 is 51346770615.

51607764315 is a `hidden beast` number, since 5 + 1 + 607 + 7 + 6 + 4 + 31 + 5 = 666.

It is not a de Polignac number, because 51607764315 - 2² = 51607764311 is a prime.

It is a super-2 number, since 2×51607764315² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 1146839207 = 51607764315 / (5 + 1 + 6 + 0 + 7 + 7 + 6 + 4 + 3 + 1 + 5).

It is not an unprimeable number, because it can be changed into a prime (51607764311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 573419559 + ... + 573419648.

It is an arithmetic number, because the mean of its divisors is an integer number (7454454852).

Almost surely, 2^51607764315 is an apocalyptic number.

51607764315 is a deficient number, since it is larger than the sum of its proper divisors (37845693909).

51607764315 is a wasteful number, since it uses less digits than its factorization.

51607764315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146839218 (or 1146839215 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 45.

The spelling of 51607764315 in words is "fifty-one billion, six hundred seven million, seven hundred sixty-four thousand, three hundred fifteen".