22685902272784 has 15 divisors (see below), whose sum is σ = 43953972566583. Its totient is φ = 11342941610448.

The previous prime is 22685902272769. The next prime is 22685902272851. The reversal of 22685902272784 is 48727220958622.

It is a happy number.

The square root of 22685902272784 is 4762972.

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

It is a super-2 number, since 2×22685902272784² (a number of 28 digits) contains 22 as substring.

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, 18456517 + ... + 19647259.

Almost surely, 2^{22685902272784} is an apocalyptic number.

22685902272784 is the 4762972-nd square number.

It is an amenable number.

22685902272784 is a deficient number, since it is larger than the sum of its proper divisors (21268070293799).

22685902272784 is an frugal number, since it uses more digits than its factorization.

22685902272784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2381494 (or 1190745 counting only the distinct ones).

The product of its (nonzero) digits is 108380160, while the sum is 64.

The spelling of 22685902272784 in words is "twenty-two trillion, six hundred eighty-five billion, nine hundred two million, two hundred seventy-two thousand, seven hundred eighty-four".