869109359104 has 160 divisors (see below), whose sum is σ = 2034034992000. Its totient is φ = 370831749120.

The previous prime is 869109359039. The next prime is 869109359177. The reversal of 869109359104 is 401953901968.

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, 40205259 + ... + 40226869.

It is an arithmetic number, because the mean of its divisors is an integer number (12712718700).

Almost surely, 2^869109359104 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 869109359104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1017017496000).

869109359104 is an abundant number, since it is smaller than the sum of its proper divisors (1164925632896).

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

869109359104 is an equidigital number, since it uses as much as digits as its factorization.

869109359104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21879 (or 21849 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 55.

The spelling of 869109359104 in words is "eight hundred sixty-nine billion, one hundred nine million, three hundred fifty-nine thousand, one hundred four".