28597928886 has 24 divisors (see below), whose sum is σ = 61967794824. Its totient is φ = 9531779040.

The previous prime is 28597928857. The next prime is 28597928893. The reversal of 28597928886 is 68882979582.

It is a happy number.

28597928886 is a `hidden beast` number, since 2 + 8 + 597 + 9 + 28 + 8 + 8 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 150765 + ... + 282711.

It is an arithmetic number, because the mean of its divisors is an integer number (2581991451).

Almost surely, 2^28597928886 is an apocalyptic number.

28597928886 is an abundant number, since it is smaller than the sum of its proper divisors (33369865938).

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

28597928886 is a wasteful number, since it uses less digits than its factorization.

28597928886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143996 (or 143993 counting only the distinct ones).

The product of its digits is 278691840, while the sum is 72.

The spelling of 28597928886 in words is "twenty-eight billion, five hundred ninety-seven million, nine hundred twenty-eight thousand, eight hundred eighty-six".