312956716439 has 4 divisors (see below), whose sum is σ = 320234779656. Its totient is φ = 305678653224.

The previous prime is 312956716399. The next prime is 312956716441. The reversal of 312956716439 is 934617659213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312956716439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312956710439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3639031544 + ... + 3639031629.

It is an arithmetic number, because the mean of its divisors is an integer number (80058694914).

Almost surely, 2^312956716439 is an apocalyptic number.

312956716439 is a deficient number, since it is larger than the sum of its proper divisors (7278063217).

312956716439 is an equidigital number, since it uses as much as digits as its factorization.

312956716439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7278063216.

The product of its digits is 7348320, while the sum is 56.

The spelling of 312956716439 in words is "three hundred twelve billion, nine hundred fifty-six million, seven hundred sixteen thousand, four hundred thirty-nine".