28564352816 has 40 divisors (see below), whose sum is σ = 60489235584. Its totient is φ = 13008430080.

The previous prime is 28564352813. The next prime is 28564352849. The reversal of 28564352816 is 61825346582.

It is not an unprimeable number, because it can be changed into a prime (28564352813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1685375 + ... + 1702238.

Almost surely, 2^28564352816 is an apocalyptic number.

It is an amenable number.

28564352816 is an abundant number, since it is smaller than the sum of its proper divisors (31924882768).

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

28564352816 is a wasteful number, since it uses less digits than its factorization.

28564352816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3387669 (or 3387663 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 50.

The spelling of 28564352816 in words is "twenty-eight billion, five hundred sixty-four million, three hundred fifty-two thousand, eight hundred sixteen".