879045664646140 has 12 divisors (see below), whose sum is σ = 1845995895756936. Its totient is φ = 351618265858448.

The previous prime is 879045664646053. The next prime is 879045664646179. The reversal of 879045664646140 is 41646466540978.

It is a self number, because there is not a number n which added to its sum of digits gives 879045664646140.

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, 21976141616134 + ... + 21976141616173.

It is an arithmetic number, because the mean of its divisors is an integer number (153832991313078).

Almost surely, 2^{879045664646140} is an apocalyptic number.

It is an amenable number.

879045664646140 is an abundant number, since it is smaller than the sum of its proper divisors (966950231110796).

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

879045664646140 is a wasteful number, since it uses less digits than its factorization.

879045664646140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43952283232316 (or 43952283232314 counting only the distinct ones).

The product of its (nonzero) digits is 836075520, while the sum is 70.

The spelling of 879045664646140 in words is "eight hundred seventy-nine trillion, forty-five billion, six hundred sixty-four million, six hundred forty-six thousand, one hundred forty".