80544368840 has 64 divisors (see below), whose sum is σ = 203650675200. Its totient is φ = 28446435072.

The previous prime is 80544368831. The next prime is 80544368897. The reversal of 80544368840 is 4886344508.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3355280 + ... + 3379199.

It is an arithmetic number, because the mean of its divisors is an integer number (3182041800).

Almost surely, 2^80544368840 is an apocalyptic number.

It is an amenable number.

80544368840 is an abundant number, since it is smaller than the sum of its proper divisors (123106306360).

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

80544368840 is a wasteful number, since it uses less digits than its factorization.

80544368840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6734526 (or 6734522 counting only the distinct ones).

The product of its (nonzero) digits is 2949120, while the sum is 50.

The spelling of 80544368840 in words is "eighty billion, five hundred forty-four million, three hundred sixty-eight thousand, eight hundred forty".