312881663264 has 24 divisors (see below), whose sum is σ = 617664233088. Its totient is φ = 156014556480.

The previous prime is 312881663243. The next prime is 312881663273. The reversal of 312881663264 is 462366188213.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13309172 + ... + 13332659.

It is an arithmetic number, because the mean of its divisors is an integer number (25736009712).

Almost surely, 2^312881663264 is an apocalyptic number.

It is an amenable number.

312881663264 is a deficient number, since it is larger than the sum of its proper divisors (304782569824).

312881663264 is a wasteful number, since it uses less digits than its factorization.

312881663264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26642208 (or 26642200 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 50.

The spelling of 312881663264 in words is "three hundred twelve billion, eight hundred eighty-one million, six hundred sixty-three thousand, two hundred sixty-four".