312919332345 has 48 divisors (see below), whose sum is σ = 573035074560. Its totient is φ = 157707027072.

The previous prime is 312919332331. The next prime is 312919332389. The reversal of 312919332345 is 543233919213.

312919332345 is a `hidden beast` number, since 31 + 291 + 9 + 3 + 323 + 4 + 5 = 666.

It is not a de Polignac number, because 312919332345 - 2⁶ = 312919332281 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 312919332345.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2489569 + ... + 2612238.

It is an arithmetic number, because the mean of its divisors is an integer number (11938230720).

Almost surely, 2^312919332345 is an apocalyptic number.

It is an amenable number.

312919332345 is a deficient number, since it is larger than the sum of its proper divisors (260115742215).

312919332345 is a wasteful number, since it uses less digits than its factorization.

312919332345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5101894 (or 5101891 counting only the distinct ones).

The product of its digits is 524880, while the sum is 45.

The spelling of 312919332345 in words is "three hundred twelve billion, nine hundred nineteen million, three hundred thirty-two thousand, three hundred forty-five".