312707974621 has 4 divisors (see below), whose sum is σ = 357380542432. Its totient is φ = 268035406812.

The previous prime is 312707974573. The next prime is 312707974633. The reversal of 312707974621 is 126479707213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 312707974621 - 2²³ = 312699586013 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 (312707971621) 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, 22336283895 + ... + 22336283908.

It is an arithmetic number, because the mean of its divisors is an integer number (89345135608).

Almost surely, 2^312707974621 is an apocalyptic number.

It is an amenable number.

312707974621 is a deficient number, since it is larger than the sum of its proper divisors (44672567811).

312707974621 is an equidigital number, since it uses as much as digits as its factorization.

312707974621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44672567810.

The product of its (nonzero) digits is 889056, while the sum is 49.

The spelling of 312707974621 in words is "three hundred twelve billion, seven hundred seven million, nine hundred seventy-four thousand, six hundred twenty-one".