312664381615 has 16 divisors (see below), whose sum is σ = 402396271200. Its totient is φ = 232495615872.

The previous prime is 312664381543. The next prime is 312664381643. The reversal of 312664381615 is 516183466213.

It is a cyclic number.

It is not a de Polignac number, because 312664381615 - 2³³ = 304074447023 is a prime.

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, 31044060 + ... + 31054129.

It is an arithmetic number, because the mean of its divisors is an integer number (25149766950).

Almost surely, 2^312664381615 is an apocalyptic number.

312664381615 is a deficient number, since it is larger than the sum of its proper divisors (89731889585).

312664381615 is a wasteful number, since it uses less digits than its factorization.

312664381615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62098266.

The product of its digits is 622080, while the sum is 46.

The spelling of 312664381615 in words is "three hundred twelve billion, six hundred sixty-four million, three hundred eighty-one thousand, six hundred fifteen".