80440844080 has 40 divisors (see below), whose sum is σ = 187298918352. Its totient is φ = 32129205504.

The previous prime is 80440844063. The next prime is 80440844129. The reversal of 80440844080 is 8044804408.

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

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 681459 + ... + 790738.

Almost surely, 2^80440844080 is an apocalyptic number.

80440844080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80440844080 is an abundant number, since it is smaller than the sum of its proper divisors (106858074272).

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

80440844080 is a wasteful number, since it uses less digits than its factorization.

80440844080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1472893 (or 1472887 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 40.

The spelling of 80440844080 in words is "eighty billion, four hundred forty million, eight hundred forty-four thousand, eighty".