679674931776 has 63 divisors (see below), whose sum is σ = 1948222188003. Its totient is φ = 226551715200.

The previous prime is 679674931753. The next prime is 679674931781. The reversal of 679674931776 is 677139476976.

The square root of 679674931776 is 824424.

It is a perfect power (a square), and thus also a powerful number.

679674931776 is a `hidden beast` number, since 6 + 7 + 9 + 67 + 493 + 1 + 7 + 76 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 19769001 + ... + 19803351.

Almost surely, 2^679674931776 is an apocalyptic number.

679674931776 is the 824424-th square number.

It is an amenable number.

679674931776 is an abundant number, since it is smaller than the sum of its proper divisors (1268547256227).

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

679674931776 is an frugal number, since it uses more digits than its factorization.

679674931776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68720 (or 34356 counting only the distinct ones).

The product of its digits is 504094752, while the sum is 72.

The spelling of 679674931776 in words is "six hundred seventy-nine billion, six hundred seventy-four million, nine hundred thirty-one thousand, seven hundred seventy-six".