28964909808 has 60 divisors (see below), whose sum is σ = 85829850288. Its totient is φ = 9087029760.

The previous prime is 28964909783. The next prime is 28964909821. The reversal of 28964909808 is 80890946982.

It is a congruent number.

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, 5913588 + ... + 5918483.

Almost surely, 2^28964909808 is an apocalyptic number.

It is an amenable number.

28964909808 is an abundant number, since it is smaller than the sum of its proper divisors (56864940480).

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

28964909808 is a wasteful number, since it uses less digits than its factorization.

28964909808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11832102 (or 11832093 counting only the distinct ones).

The product of its (nonzero) digits is 17915904, while the sum is 63.

The spelling of 28964909808 in words is "twenty-eight billion, nine hundred sixty-four million, nine hundred nine thousand, eight hundred eight".