312591054856 has 32 divisors (see below), whose sum is σ = 602569471680. Its totient is φ = 151914571200.

The previous prime is 312591054847. The next prime is 312591054863. The reversal of 312591054856 is 658450195213.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256380 + ... + 831211.

It is an arithmetic number, because the mean of its divisors is an integer number (18830295990).

Almost surely, 2^312591054856 is an apocalyptic number.

It is an amenable number.

312591054856 is a deficient number, since it is larger than the sum of its proper divisors (289978416824).

312591054856 is a wasteful number, since it uses less digits than its factorization.

312591054856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088605 (or 1088601 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 49.

The spelling of 312591054856 in words is "three hundred twelve billion, five hundred ninety-one million, fifty-four thousand, eight hundred fifty-six".