390699670464 has 84 divisors (see below), whose sum is σ = 1145913624856. Its totient is φ = 127204535808.

The previous prime is 390699670457. The next prime is 390699670477. The reversal of 390699670464 is 464076996093.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7862419 + ... + 7911954.

Almost surely, 2^390699670464 is an apocalyptic number.

It is an amenable number.

390699670464 is an abundant number, since it is smaller than the sum of its proper divisors (755213954392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

390699670464 is a wasteful number, since it uses less digits than its factorization.

390699670464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15774434 (or 15774421 counting only the distinct ones).

The product of its (nonzero) digits is 52907904, while the sum is 63.

The spelling of 390699670464 in words is "three hundred ninety billion, six hundred ninety-nine million, six hundred seventy thousand, four hundred sixty-four".