28500797088 has 72 divisors (see below), whose sum is σ = 85314902400. Its totient is φ = 9000249984.

The previous prime is 28500796997. The next prime is 28500797099. The reversal of 28500797088 is 88079700582.

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2598768 + ... + 2609711.

It is an arithmetic number, because the mean of its divisors is an integer number (1184929200).

Almost surely, 2^28500797088 is an apocalyptic number.

It is an amenable number.

28500797088 is an abundant number, since it is smaller than the sum of its proper divisors (56814105312).

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

28500797088 is a wasteful number, since it uses less digits than its factorization.

28500797088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5208514 (or 5208503 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 54.

The spelling of 28500797088 in words is "twenty-eight billion, five hundred million, seven hundred ninety-seven thousand, eighty-eight".