679555555976 has 64 divisors (see below), whose sum is σ = 1413976642560. Its totient is φ = 303569280000.

The previous prime is 679555555937. The next prime is 679555556041.

679555555976 is nontrivially palindromic in base 10.

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, 6394265 + ... + 6499671.

It is an arithmetic number, because the mean of its divisors is an integer number (22093385040).

Almost surely, 2^679555555976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 679555555976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (706988321280).

679555555976 is an abundant number, since it is smaller than the sum of its proper divisors (734421086584).

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

679555555976 is a wasteful number, since it uses less digits than its factorization.

679555555976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106686 (or 106682 counting only the distinct ones).

The product of its digits is 2232562500, while the sum is 74.

The spelling of 679555555976 in words is "six hundred seventy-nine billion, five hundred fifty-five million, five hundred fifty-five thousand, nine hundred seventy-six".