800979539694 has 64 divisors (see below), whose sum is σ = 1714456074240. Its totient is φ = 248853876480.

The previous prime is 800979539669. The next prime is 800979539707. The reversal of 800979539694 is 496935979008.

It is a super-2 number, since 2×800979539694² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4605099 + ... + 4775865.

It is an arithmetic number, because the mean of its divisors is an integer number (26788376160).

Almost surely, 2^800979539694 is an apocalyptic number.

800979539694 is an abundant number, since it is smaller than the sum of its proper divisors (913476534546).

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

800979539694 is a wasteful number, since it uses less digits than its factorization.

800979539694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171665.

The product of its (nonzero) digits is 132269760, while the sum is 69.

The spelling of 800979539694 in words is "eight hundred billion, nine hundred seventy-nine million, five hundred thirty-nine thousand, six hundred ninety-four".