80440406284 has 12 divisors (see below), whose sum is σ = 160880812624. Its totient is φ = 34474459824.

The previous prime is 80440406273. The next prime is 80440406297. The reversal of 80440406284 is 48260404408.

80440406284 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1436435799 + ... + 1436435854.

Almost surely, 2^80440406284 is an apocalyptic number.

It is an amenable number.

80440406284 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

80440406284 is a wasteful number, since it uses less digits than its factorization.

80440406284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2872871664 (or 2872871662 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 40.

The spelling of 80440406284 in words is "eighty billion, four hundred forty million, four hundred six thousand, two hundred eighty-four".