28893999504 has 80 divisors (see below), whose sum is σ = 81987609600. Its totient is φ = 8727700608.

The previous prime is 28893999467. The next prime is 28893999529. The reversal of 28893999504 is 40599939882.

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, 667764 + ... + 709715.

It is an arithmetic number, because the mean of its divisors is an integer number (1024845120).

Almost surely, 2^28893999504 is an apocalyptic number.

28893999504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28893999504 is an abundant number, since it is smaller than the sum of its proper divisors (53093610096).

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

28893999504 is a wasteful number, since it uses less digits than its factorization.

28893999504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377532 (or 1377526 counting only the distinct ones).

The product of its (nonzero) digits is 50388480, while the sum is 66.

The spelling of 28893999504 in words is "twenty-eight billion, eight hundred ninety-three million, nine hundred ninety-nine thousand, five hundred four".