28025500075808 has 48 divisors (see below), whose sum is σ = 57994374453120. Its totient is φ = 13305664221696.

The previous prime is 28025500075787. The next prime is 28025500075823. The reversal of 28025500075808 is 80857000552082.

It is a super-2 number, since 2×28025500075808² (a number of 28 digits) contains 22 as substring.

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, 138870428 + ... + 139072091.

It is an arithmetic number, because the mean of its divisors is an integer number (1208216134440).

Almost surely, 2^{28025500075808} is an apocalyptic number.

It is an amenable number.

28025500075808 is an abundant number, since it is smaller than the sum of its proper divisors (29968874377312).

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

28025500075808 is a wasteful number, since it uses less digits than its factorization.

28025500075808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277942689 (or 277942681 counting only the distinct ones).

The product of its (nonzero) digits is 1792000, while the sum is 50.

The spelling of 28025500075808 in words is "twenty-eight trillion, twenty-five billion, five hundred million, seventy-five thousand, eight hundred eight".