312977066365 has 16 divisors (see below), whose sum is σ = 376158367152. Its totient is φ = 249991225344.

The previous prime is 312977066291. The next prime is 312977066371. The reversal of 312977066365 is 563660779213.

It can be written as a sum of positive squares in 8 ways, for example, as 68993427556 + 243983638809 = 262666^2 + 493947^2 .

It is a cyclic number.

It is not a de Polignac number, because 312977066365 - 2⁹ = 312977065853 is a prime.

It is a super-2 number, since 2×312977066365² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent 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, 22843197 + ... + 22856893.

It is an arithmetic number, because the mean of its divisors is an integer number (23509897947).

Almost surely, 2^312977066365 is an apocalyptic number.

It is an amenable number.

312977066365 is a deficient number, since it is larger than the sum of its proper divisors (63181300787).

312977066365 is a wasteful number, since it uses less digits than its factorization.

312977066365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20496.

The product of its (nonzero) digits is 8573040, while the sum is 55.

The spelling of 312977066365 in words is "three hundred twelve billion, nine hundred seventy-seven million, sixty-six thousand, three hundred sixty-five".