870868440880 has 80 divisors (see below), whose sum is σ = 2080422656928. Its totient is φ = 338823936000.

The previous prime is 870868440853. The next prime is 870868440887. The reversal of 870868440880 is 88044868078.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (870868440887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 684610 + ... + 1486750.

Almost surely, 2^870868440880 is an apocalyptic number.

870868440880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 870868440880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1040211328464).

870868440880 is an abundant number, since it is smaller than the sum of its proper divisors (1209554216048).

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

870868440880 is a wasteful number, since it uses less digits than its factorization.

870868440880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802526 (or 802520 counting only the distinct ones).

The product of its (nonzero) digits is 22020096, while the sum is 61.

The spelling of 870868440880 in words is "eight hundred seventy billion, eight hundred sixty-eight million, four hundred forty thousand, eight hundred eighty".