28320788760 has 64 divisors (see below), whose sum is σ = 92686222080. Its totient is φ = 6865645440.

The previous prime is 28320788759. The next prime is 28320788791. The reversal of 28320788760 is 6788702382.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10726252 + ... + 10728891.

It is an arithmetic number, because the mean of its divisors is an integer number (1448222220).

Almost surely, 2^28320788760 is an apocalyptic number.

28320788760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28320788760 is an abundant number, since it is smaller than the sum of its proper divisors (64365433320).

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

28320788760 is a wasteful number, since it uses less digits than its factorization.

28320788760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21455168 (or 21455164 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 51.

The spelling of 28320788760 in words is "twenty-eight billion, three hundred twenty million, seven hundred eighty-eight thousand, seven hundred sixty".