80049372520 has 128 divisors (see below), whose sum is σ = 199895351040. Its totient is φ = 28661852160.

The previous prime is 80049372497. The next prime is 80049372581. The reversal of 80049372520 is 2527394008.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3549199 + ... + 3571681.

It is an arithmetic number, because the mean of its divisors is an integer number (1561682430).

Almost surely, 2^80049372520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80049372520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99947675520).

80049372520 is an abundant number, since it is smaller than the sum of its proper divisors (119845978520).

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

80049372520 is a wasteful number, since it uses less digits than its factorization.

80049372520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22715 (or 22711 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 80049372520 in words is "eighty billion, forty-nine million, three hundred seventy-two thousand, five hundred twenty".