679187909164 has 12 divisors (see below), whose sum is σ = 1200346949088. Its totient is φ = 336231638000.

The previous prime is 679187909161. The next prime is 679187909177. The reversal of 679187909164 is 461909781976.

It is a super-2 number, since 2×679187909164² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 679187909164.

It is not an unprimeable number, because it can be changed into a prime (679187909161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 840578692 + ... + 840579499.

It is an arithmetic number, because the mean of its divisors is an integer number (100028912424).

Almost surely, 2^679187909164 is an apocalyptic number.

It is an amenable number.

679187909164 is a deficient number, since it is larger than the sum of its proper divisors (521159039924).

679187909164 is a wasteful number, since it uses less digits than its factorization.

679187909164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1681158296 (or 1681158294 counting only the distinct ones).

The product of its (nonzero) digits is 41150592, while the sum is 67.

The spelling of 679187909164 in words is "six hundred seventy-nine billion, one hundred eighty-seven million, nine hundred nine thousand, one hundred sixty-four".