879207329840 has 40 divisors (see below), whose sum is σ = 2336179477920. Its totient is φ = 301442512896.

The previous prime is 879207329809. The next prime is 879207329933. The reversal of 879207329840 is 48923702978.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 879207329840.

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, 785005985 + ... + 785007104.

It is an arithmetic number, because the mean of its divisors is an integer number (58404486948).

Almost surely, 2^879207329840 is an apocalyptic number.

879207329840 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

879207329840 is an abundant number, since it is smaller than the sum of its proper divisors (1456972148080).

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

879207329840 is a wasteful number, since it uses less digits than its factorization.

879207329840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570013109 (or 1570013103 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 59.

The spelling of 879207329840 in words is "eight hundred seventy-nine billion, two hundred seven million, three hundred twenty-nine thousand, eight hundred forty".