80899748544 has 56 divisors (see below), whose sum is σ = 215329056768. Its totient is φ = 26805095680.

The previous prime is 80899748521. The next prime is 80899748591. The reversal of 80899748544 is 44584799808.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1229472 + ... + 1293599.

It is an arithmetic number, because the mean of its divisors is an integer number (3845161728).

Almost surely, 2^80899748544 is an apocalyptic number.

It is an amenable number.

80899748544 is an abundant number, since it is smaller than the sum of its proper divisors (134429308224).

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

80899748544 is a wasteful number, since it uses less digits than its factorization.

80899748544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2523253 (or 2523243 counting only the distinct ones).

The product of its (nonzero) digits is 92897280, while the sum is 66.

The spelling of 80899748544 in words is "eighty billion, eight hundred ninety-nine million, seven hundred forty-eight thousand, five hundred forty-four".