312557979964 has 24 divisors (see below), whose sum is σ = 561796915680. Its totient is φ = 152045136576.

The previous prime is 312557979949. The next prime is 312557979967. The reversal of 312557979964 is 469979755213.

It is a self number, because there is not a number n which added to its sum of digits gives 312557979964.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312557979967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2477994 + ... + 2601070.

It is an arithmetic number, because the mean of its divisors is an integer number (23408204820).

Almost surely, 2^312557979964 is an apocalyptic number.

It is an amenable number.

312557979964 is a deficient number, since it is larger than the sum of its proper divisors (249238935716).

312557979964 is a wasteful number, since it uses less digits than its factorization.

312557979964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140277 (or 140275 counting only the distinct ones).

The product of its digits is 128595600, while the sum is 67.

The spelling of 312557979964 in words is "three hundred twelve billion, five hundred fifty-seven million, nine hundred seventy-nine thousand, nine hundred sixty-four".