879985262540 has 24 divisors (see below), whose sum is σ = 1868732752320. Its totient is φ = 348039114368.

The previous prime is 879985262537. The next prime is 879985262551. The reversal of 879985262540 is 45262589978.

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, 247185092 + ... + 247188651.

It is an arithmetic number, because the mean of its divisors is an integer number (77863864680).

Almost surely, 2^879985262540 is an apocalyptic number.

It is an amenable number.

879985262540 is an abundant number, since it is smaller than the sum of its proper divisors (988747489780).

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

879985262540 is a wasteful number, since it uses less digits than its factorization.

879985262540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494373841 (or 494373839 counting only the distinct ones).

The product of its (nonzero) digits is 87091200, while the sum is 65.

The spelling of 879985262540 in words is "eight hundred seventy-nine billion, nine hundred eighty-five million, two hundred sixty-two thousand, five hundred forty".