80844400844 has 12 divisors (see below), whose sum is σ = 141691741968. Its totient is φ = 40361046000.

The previous prime is 80844400829. The next prime is 80844400877. The reversal of 80844400844 is 44800444808.

It is a junction number, because it is equal to n+sod(n) for n = 80844400795 and 80844400804.

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, 15285632 + ... + 15290919.

It is an arithmetic number, because the mean of its divisors is an integer number (11807645164).

Almost surely, 2^80844400844 is an apocalyptic number.

It is an amenable number.

80844400844 is a deficient number, since it is larger than the sum of its proper divisors (60847341124).

80844400844 is a wasteful number, since it uses less digits than its factorization.

80844400844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30577216 (or 30577214 counting only the distinct ones).

The product of its (nonzero) digits is 524288, while the sum is 44.

The spelling of 80844400844 in words is "eighty billion, eight hundred forty-four million, four hundred thousand, eight hundred forty-four".