312812534691 has 8 divisors (see below), whose sum is σ = 463425977360. Its totient is φ = 208541689776.

The previous prime is 312812534681. The next prime is 312812534693. The reversal of 312812534691 is 196435218213.

312812534691 is a `hidden beast` number, since 3 + 1 + 28 + 1 + 2 + 534 + 6 + 91 = 666.

It is not a de Polignac number, because 312812534691 - 2⁵ = 312812534659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312812534693) 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 7 ways as a sum of consecutive naturals, for example, 5792824690 + ... + 5792824743.

It is an arithmetic number, because the mean of its divisors is an integer number (57928247170).

Almost surely, 2^312812534691 is an apocalyptic number.

312812534691 is a deficient number, since it is larger than the sum of its proper divisors (150613442669).

312812534691 is a wasteful number, since it uses less digits than its factorization.

312812534691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11585649442 (or 11585649436 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The spelling of 312812534691 in words is "three hundred twelve billion, eight hundred twelve million, five hundred thirty-four thousand, six hundred ninety-one".