312346539999 has 24 divisors (see below), whose sum is σ = 486438177680. Its totient is φ = 191989429632.

The previous prime is 312346539971. The next prime is 312346540003. The reversal of 312346539999 is 999935643213.

312346539999 is a `hidden beast` number, since 3 + 1 + 2 + 3 + 4 + 6 + 539 + 9 + 99 = 666.

It is not a de Polignac number, because 312346539999 - 2¹⁹ = 312346015711 is a prime.

It is a super-2 number, since 2×312346539999² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312346539919) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1453414 + ... + 1654419.

Almost surely, 2^312346539999 is an apocalyptic number.

312346539999 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

312346539999 is a deficient number, since it is larger than the sum of its proper divisors (174091637681).

312346539999 is a wasteful number, since it uses less digits than its factorization.

312346539999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3108711 (or 3108708 counting only the distinct ones).

The product of its digits is 42515280, while the sum is 63.

The spelling of 312346539999 in words is "three hundred twelve billion, three hundred forty-six million, five hundred thirty-nine thousand, nine hundred ninety-nine".