80440000004 has 48 divisors (see below), whose sum is σ = 174501936000. Its totient is φ = 31593459456.

The previous prime is 80439999977. The next prime is 80440000021. The reversal of 80440000004 is 40000004408.

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, 744329 + ... + 845520.

It is an arithmetic number, because the mean of its divisors is an integer number (3635457000).

Almost surely, 2^80440000004 is an apocalyptic number.

It is an amenable number.

80440000004 is an abundant number, since it is smaller than the sum of its proper divisors (94061935996).

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

80440000004 is a wasteful number, since it uses less digits than its factorization.

80440000004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1590012 (or 1590010 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The spelling of 80440000004 in words is "eighty billion, four hundred forty million, four", and thus it is an aban number.