28388825264 has 40 divisors (see below), whose sum is σ = 55413471168. Its totient is φ = 14088919040.

The previous prime is 28388825233. The next prime is 28388825279. The reversal of 28388825264 is 46252888382.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1348064 + ... + 1368960.

Almost surely, 2^28388825264 is an apocalyptic number.

It is an amenable number.

28388825264 is a deficient number, since it is larger than the sum of its proper divisors (27024645904).

28388825264 is a wasteful number, since it uses less digits than its factorization.

28388825264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21533 (or 21527 counting only the distinct ones).

The product of its digits is 11796480, while the sum is 56.

The spelling of 28388825264 in words is "twenty-eight billion, three hundred eighty-eight million, eight hundred twenty-five thousand, two hundred sixty-four".