679621264532 has 24 divisors (see below), whose sum is σ = 1359277671360. Its totient is φ = 291258725760.

The previous prime is 679621264499. The next prime is 679621264571. The reversal of 679621264532 is 235462126976.

It is a happy number.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 866444 + ... + 1452572.

It is an arithmetic number, because the mean of its divisors is an integer number (56636569640).

Almost surely, 2^679621264532 is an apocalyptic number.

It is an amenable number.

679621264532 is an abundant number, since it is smaller than the sum of its proper divisors (679656406828).

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

679621264532 is a wasteful number, since it uses less digits than its factorization.

679621264532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627551 (or 627549 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 53.

The spelling of 679621264532 in words is "six hundred seventy-nine billion, six hundred twenty-one million, two hundred sixty-four thousand, five hundred thirty-two".