80440000088 has 64 divisors (see below), whose sum is σ = 175993171200. Its totient is φ = 33754608000.

The previous prime is 80440000063. The next prime is 80440000093. The reversal of 80440000088 is 88000004408.

It is a super-2 number, since 2×80440000088² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 780806 + ... + 877802.

It is an arithmetic number, because the mean of its divisors is an integer number (2749893300).

Almost surely, 2^80440000088 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 80440000088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87996585600).

80440000088 is an abundant number, since it is smaller than the sum of its proper divisors (95553171112).

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

80440000088 is a wasteful number, since it uses less digits than its factorization.

80440000088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97320 (or 97316 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 32.

The spelling of 80440000088 in words is "eighty billion, four hundred forty million, eighty-eight", and thus it is an aban number.