22795866289 has 9 divisors (see below), whose sum is σ = 26518869867. Its totient is φ = 19538408064.

The previous prime is 22795866221. The next prime is 22795866311. The reversal of 22795866289 is 98266859722.

The square root of 22795866289 is 150983.

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., 606784689 + 22189081600 = 24633^2 + 148960^2 .

It is not a de Polignac number, because 22795866289 - 2⁷ = 22795866161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22795866289.

It is not an unprimeable number, because it can be changed into a prime (22795876289) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1046097 + ... + 1067665.

Almost surely, 2^22795866289 is an apocalyptic number.

22795866289 is the 150983-rd square number.

22795866289 is the 75492-nd centered octagonal number.

It is an amenable number.

22795866289 is a deficient number, since it is larger than the sum of its proper divisors (3723003578).

22795866289 is an frugal number, since it uses more digits than its factorization.

22795866289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43152 (or 21576 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 64.

Multiplying 22795866289 by its sum of digits (64), we get a square (1458935442496 = 1207864²).

The spelling of 22795866289 in words is "twenty-two billion, seven hundred ninety-five million, eight hundred sixty-six thousand, two hundred eighty-nine".