312427462666 has 12 divisors (see below), whose sum is σ = 515118007026. Its totient is φ = 142012482920.

The previous prime is 312427462643. The next prime is 312427462687. The reversal of 312427462666 is 666264724213.

It can be written as a sum of positive squares in only one way, i.e., 250379143641 + 62048319025 = 500379^2 + 249095^2 .

It is a super-2 number, since 2×312427462666² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 645511045 + ... + 645511528.

Almost surely, 2^312427462666 is an apocalyptic number.

312427462666 is a deficient number, since it is larger than the sum of its proper divisors (202690544360).

312427462666 is a wasteful number, since it uses less digits than its factorization.

312427462666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291022597 (or 1291022586 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 49.

The spelling of 312427462666 in words is "three hundred twelve billion, four hundred twenty-seven million, four hundred sixty-two thousand, six hundred sixty-six".