679684398076 has 12 divisors (see below), whose sum is σ = 1189626526872. Its totient is φ = 339791104688.

The previous prime is 679684398017. The next prime is 679684398097. The reversal of 679684398076 is 670893486976.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12743650 + ... + 12796873.

It is an arithmetic number, because the mean of its divisors is an integer number (99135543906).

Almost surely, 2^679684398076 is an apocalyptic number.

It is an amenable number.

679684398076 is a deficient number, since it is larger than the sum of its proper divisors (509942128796).

679684398076 is a wasteful number, since it uses less digits than its factorization.

679684398076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25547180 (or 25547178 counting only the distinct ones).

The product of its (nonzero) digits is 658409472, while the sum is 73.

The spelling of 679684398076 in words is "six hundred seventy-nine billion, six hundred eighty-four million, three hundred ninety-eight thousand, seventy-six".