312125016464 has 20 divisors (see below), whose sum is σ = 604759512780. Its totient is φ = 156058045440.

The previous prime is 312125016443. The next prime is 312125016529. The reversal of 312125016464 is 464610521213.

It can be written as a sum of positive squares in 2 ways, for example, as 213529016464 + 98596000000 = 462092^2 + 314000^2 .

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, 339644 + ... + 860004.

It is an arithmetic number, because the mean of its divisors is an integer number (30237975639).

Almost surely, 2^312125016464 is an apocalyptic number.

It is an amenable number.

312125016464 is a deficient number, since it is larger than the sum of its proper divisors (292634496316).

312125016464 is a wasteful number, since it uses less digits than its factorization.

312125016464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557858 (or 557852 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

Adding to 312125016464 its reverse (464610521213), we get a palindrome (776735537677).

The spelling of 312125016464 in words is "three hundred twelve billion, one hundred twenty-five million, sixteen thousand, four hundred sixty-four".