28568137764 has 48 divisors (see below), whose sum is σ = 70595280000. Its totient is φ = 8960626176.

The previous prime is 28568137721. The next prime is 28568137789. The reversal of 28568137764 is 46773186582.

It is a super-2 number, since 2×28568137764² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1160617 + ... + 1184975.

It is an arithmetic number, because the mean of its divisors is an integer number (1470735000).

Almost surely, 2^28568137764 is an apocalyptic number.

It is an amenable number.

28568137764 is an abundant number, since it is smaller than the sum of its proper divisors (42027142236).

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

28568137764 is a wasteful number, since it uses less digits than its factorization.

28568137764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30132 (or 30130 counting only the distinct ones).

The product of its digits is 13547520, while the sum is 57.

The spelling of 28568137764 in words is "twenty-eight billion, five hundred sixty-eight million, one hundred thirty-seven thousand, seven hundred sixty-four".