312857855812 has 24 divisors (see below), whose sum is σ = 555717357440. Its totient is φ = 154081841760.

The previous prime is 312857855759. The next prime is 312857855813. The reversal of 312857855812 is 218558758213.

It is not an unprimeable number, because it can be changed into a prime (312857855813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3945637 + ... + 4024147.

Almost surely, 2^312857855812 is an apocalyptic number.

It is an amenable number.

312857855812 is a deficient number, since it is larger than the sum of its proper divisors (242859501628).

312857855812 is a wasteful number, since it uses less digits than its factorization.

312857855812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93451 (or 93449 counting only the distinct ones).

The product of its digits is 5376000, while the sum is 55.

The spelling of 312857855812 in words is "three hundred twelve billion, eight hundred fifty-seven million, eight hundred fifty-five thousand, eight hundred twelve".