312916718690 has 16 divisors (see below), whose sum is σ = 576987901560. Its totient is φ = 122113841280.

The previous prime is 312916718603. The next prime is 312916718693. The reversal of 312916718690 is 96817619213.

It can be written as a sum of positive squares in 4 ways, for example, as 215880107641 + 97036611049 = 464629^2 + 311507^2 .

It is a super-2 number, since 2×312916718690² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (312916718693) 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, 381605345 + ... + 381606164.

Almost surely, 2^312916718690 is an apocalyptic number.

312916718690 is a deficient number, since it is larger than the sum of its proper divisors (264071182870).

312916718690 is a wasteful number, since it uses less digits than its factorization.

312916718690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763211557.

The product of its (nonzero) digits is 979776, while the sum is 53.

The spelling of 312916718690 in words is "three hundred twelve billion, nine hundred sixteen million, seven hundred eighteen thousand, six hundred ninety".