312164974490 has 32 divisors (see below), whose sum is σ = 562853625984. Its totient is φ = 124653568320.

The previous prime is 312164974483. The next prime is 312164974529. The reversal of 312164974490 is 94479461213.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16597772 + ... + 16616568.

It is an arithmetic number, because the mean of its divisors is an integer number (17589175812).

Almost surely, 2^312164974490 is an apocalyptic number.

312164974490 is a deficient number, since it is larger than the sum of its proper divisors (250688651494).

312164974490 is a wasteful number, since it uses less digits than its factorization.

312164974490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21542.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 312164974490 in words is "three hundred twelve billion, one hundred sixty-four million, nine hundred seventy-four thousand, four hundred ninety".