28568379884 has 54 divisors (see below), whose sum is σ = 55385060724. Its totient is φ = 12787385040.

The previous prime is 28568379883. The next prime is 28568379901. The reversal of 28568379884 is 48897386582.

It is not an unprimeable number, because it can be changed into a prime (28568379883) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 93056459 + ... + 93056765.

Almost surely, 2^28568379884 is an apocalyptic number.

It is an amenable number.

28568379884 is a deficient number, since it is larger than the sum of its proper divisors (26816680840).

28568379884 is an equidigital number, since it uses as much as digits as its factorization.

28568379884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795 (or 403 counting only the distinct ones).

The product of its digits is 185794560, while the sum is 68.

The spelling of 28568379884 in words is "twenty-eight billion, five hundred sixty-eight million, three hundred seventy-nine thousand, eight hundred eighty-four".