22878982564 has 9 divisors (see below), whose sum is σ = 40038748897. Its totient is φ = 11439340024.

The previous prime is 22878982549. The next prime is 22878982573. The reversal of 22878982564 is 46528987822.

The square root of 22878982564 is 151258.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 22874142564 + 4840000 = 151242^2 + 2200^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 264702 + ... + 340330.

Almost surely, 2^22878982564 is an apocalyptic number.

22878982564 is the 151258-th square number.

It is an amenable number.

22878982564 is a deficient number, since it is larger than the sum of its proper divisors (17159766333).

22878982564 is an frugal number, since it uses more digits than its factorization.

22878982564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151262 (or 75631 counting only the distinct ones).

The product of its digits is 30965760, while the sum is 61.

The spelling of 22878982564 in words is "twenty-two billion, eight hundred seventy-eight million, nine hundred eighty-two thousand, five hundred sixty-four".