28255716808 has 32 divisors (see below), whose sum is σ = 59025490560. Its totient is φ = 12570239680.

The previous prime is 28255716787. The next prime is 28255716833. The reversal of 28255716808 is 80861755282.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3411691 + ... + 3419962.

It is an arithmetic number, because the mean of its divisors is an integer number (1844546580).

Almost surely, 2^28255716808 is an apocalyptic number.

It is an amenable number.

28255716808 is an abundant number, since it is smaller than the sum of its proper divisors (30769773752).

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

28255716808 is a wasteful number, since it uses less digits than its factorization.

28255716808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6831717 (or 6831713 counting only the distinct ones).

The product of its (nonzero) digits is 2150400, while the sum is 52.

The spelling of 28255716808 in words is "twenty-eight billion, two hundred fifty-five million, seven hundred sixteen thousand, eight hundred eight".