679864826994 has 32 divisors (see below), whose sum is σ = 1377676032000. Its totient is φ = 223633607184.

The previous prime is 679864826983. The next prime is 679864827001. The reversal of 679864826994 is 499628468976.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 508977 + ... + 1272315.

It is an arithmetic number, because the mean of its divisors is an integer number (43052376000).

Almost surely, 2^679864826994 is an apocalyptic number.

679864826994 is an abundant number, since it is smaller than the sum of its proper divisors (697811205006).

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

679864826994 is a wasteful number, since it uses less digits than its factorization.

679864826994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765302.

The product of its digits is 2257403904, while the sum is 78.

The spelling of 679864826994 in words is "six hundred seventy-nine billion, eight hundred sixty-four million, eight hundred twenty-six thousand, nine hundred ninety-four".