80444403680 has 24 divisors (see below), whose sum is σ = 190049904072. Its totient is φ = 32177761408.

The previous prime is 80444403673. The next prime is 80444403703. The reversal of 80444403680 is 8630444408.

It is a congruent 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, 251388602 + ... + 251388921.

It is an arithmetic number, because the mean of its divisors is an integer number (7918746003).

Almost surely, 2^80444403680 is an apocalyptic number.

80444403680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80444403680 is an abundant number, since it is smaller than the sum of its proper divisors (109605500392).

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

80444403680 is a wasteful number, since it uses less digits than its factorization.

80444403680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502777538 (or 502777530 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 41.

The spelling of 80444403680 in words is "eighty billion, four hundred forty-four million, four hundred three thousand, six hundred eighty".