396929679664 has 20 divisors (see below), whose sum is σ = 878915719504. Its totient is φ = 170112719808.

The previous prime is 396929679613. The next prime is 396929679673. The reversal of 396929679664 is 466976929693.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1772007387 + ... + 1772007610.

Almost surely, 2^396929679664 is an apocalyptic number.

It is an amenable number.

396929679664 is an abundant number, since it is smaller than the sum of its proper divisors (481986039840).

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

396929679664 is a wasteful number, since it uses less digits than its factorization.

396929679664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3544015012 (or 3544015006 counting only the distinct ones).

The product of its digits is 1428513408, while the sum is 76.

The spelling of 396929679664 in words is "three hundred ninety-six billion, nine hundred twenty-nine million, six hundred seventy-nine thousand, six hundred sixty-four".