80528857584 has 40 divisors (see below), whose sum is σ = 237751866240. Its totient is φ = 23008244928.

The previous prime is 80528857583. The next prime is 80528857589. The reversal of 80528857584 is 48575882508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80528857583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119834274 + ... + 119834945.

It is an arithmetic number, because the mean of its divisors is an integer number (5943796656).

Almost surely, 2^80528857584 is an apocalyptic number.

80528857584 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

80528857584 is an abundant number, since it is smaller than the sum of its proper divisors (157223008656).

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

80528857584 is a wasteful number, since it uses less digits than its factorization.

80528857584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239669237 (or 239669231 counting only the distinct ones).

The product of its (nonzero) digits is 28672000, while the sum is 60.

The spelling of 80528857584 in words is "eighty billion, five hundred twenty-eight million, eight hundred fifty-seven thousand, five hundred eighty-four".