880009443021 has 16 divisors (see below), whose sum is σ = 1189615285760. Its totient is φ = 578540931840.

The previous prime is 880009443017. The next prime is 880009443023. The reversal of 880009443021 is 120344900088.

It is not a de Polignac number, because 880009443021 - 2² = 880009443017 is a prime.

It is a super-2 number, since 2×880009443021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (880009443023) 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, 1012260 + ... + 1668738.

It is an arithmetic number, because the mean of its divisors is an integer number (74350955360).

Almost surely, 2^880009443021 is an apocalyptic number.

It is an amenable number.

880009443021 is a deficient number, since it is larger than the sum of its proper divisors (309605842739).

880009443021 is a wasteful number, since it uses less digits than its factorization.

880009443021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662676.

The product of its (nonzero) digits is 55296, while the sum is 39.

It can be divided in two parts, 8800094 and 43021, that added together give a triangular number (8843115 = T₄₂₀₅).

The spelling of 880009443021 in words is "eight hundred eighty billion, nine million, four hundred forty-three thousand, twenty-one".