28568362872 has 64 divisors (see below), whose sum is σ = 81859288320. Its totient is φ = 8138850048.

The previous prime is 28568362841. The next prime is 28568362897. The reversal of 28568362872 is 27826386582.

It is a congruent number.

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, 186733 + ... + 303324.

It is an arithmetic number, because the mean of its divisors is an integer number (1279051380).

Almost surely, 2^28568362872 is an apocalyptic number.

It is an amenable number.

28568362872 is an abundant number, since it is smaller than the sum of its proper divisors (53290925448).

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

28568362872 is a wasteful number, since it uses less digits than its factorization.

28568362872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490420 (or 490416 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 57.

The spelling of 28568362872 in words is "twenty-eight billion, five hundred sixty-eight million, three hundred sixty-two thousand, eight hundred seventy-two".