396643108794 has 16 divisors (see below), whose sum is σ = 800700108768. Its totient is φ = 130978721072.

The previous prime is 396643108769. The next prime is 396643108817. The reversal of 396643108794 is 497801346693.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308911437 + ... + 308912720.

It is an arithmetic number, because the mean of its divisors is an integer number (50043756798).

Almost surely, 2^396643108794 is an apocalyptic number.

396643108794 is an abundant number, since it is smaller than the sum of its proper divisors (404056999974).

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

396643108794 is a wasteful number, since it uses less digits than its factorization.

396643108794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617824269.

The product of its (nonzero) digits is 23514624, while the sum is 60.

The spelling of 396643108794 in words is "three hundred ninety-six billion, six hundred forty-three million, one hundred eight thousand, seven hundred ninety-four".