312693842788 has 12 divisors (see below), whose sum is σ = 547358520940. Its totient is φ = 156305693952.

The previous prime is 312693842779. The next prime is 312693842809. The reversal of 312693842788 is 887248396213.

It can be written as a sum of positive squares in 2 ways, for example, as 95865782884 + 216828059904 = 309622^2 + 465648^2 .

It is a super-2 number, since 2×312693842788² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (61) coincides with the sum of the digits of its distinct prime factors.

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, 10289793 + ... + 10320136.

Almost surely, 2^312693842788 is an apocalyptic number.

It is an amenable number.

312693842788 is a deficient number, since it is larger than the sum of its proper divisors (234664678152).

312693842788 is a wasteful number, since it uses less digits than its factorization.

312693842788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20613726 (or 20613724 counting only the distinct ones).

The product of its digits is 27869184, while the sum is 61.

The spelling of 312693842788 in words is "three hundred twelve billion, six hundred ninety-three million, eight hundred forty-two thousand, seven hundred eighty-eight".