28597285272 has 16 divisors (see below), whose sum is σ = 71493213240. Its totient is φ = 9532428416.

The previous prime is 28597285259. The next prime is 28597285291. The reversal of 28597285272 is 27258279582.

It is a super-2 number, since 2×28597285272² (a number of 22 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 595776753 + ... + 595776800.

Almost surely, 2^28597285272 is an apocalyptic number.

It is an amenable number.

28597285272 is an abundant number, since it is smaller than the sum of its proper divisors (42895927968).

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

28597285272 is a wasteful number, since it uses less digits than its factorization.

28597285272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191553562 (or 1191553558 counting only the distinct ones).

The product of its digits is 11289600, while the sum is 57.

The spelling of 28597285272 in words is "twenty-eight billion, five hundred ninety-seven million, two hundred eighty-five thousand, two hundred seventy-two".