679660854764 has 24 divisors (see below), whose sum is σ = 1207610839008. Its totient is φ = 334643944320.

The previous prime is 679660854707. The next prime is 679660854773. The reversal of 679660854764 is 467458066976.

It is a super-2 number, since 2×679660854764² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (68) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 679660854694 and 679660854703.

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, 1660127 + ... + 2028630.

It is an arithmetic number, because the mean of its divisors is an integer number (50317118292).

Almost surely, 2^679660854764 is an apocalyptic number.

It is an amenable number.

679660854764 is a deficient number, since it is larger than the sum of its proper divisors (527949984244).

679660854764 is a wasteful number, since it uses less digits than its factorization.

679660854764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3689465 (or 3689463 counting only the distinct ones).

The product of its (nonzero) digits is 365783040, while the sum is 68.

The spelling of 679660854764 in words is "six hundred seventy-nine billion, six hundred sixty million, eight hundred fifty-four thousand, seven hundred sixty-four".