22634299809 has 81 divisors (see below), whose sum is σ = 37099669971. Its totient is φ = 13287479040.

The previous prime is 22634299801. The next prime is 22634299811. The reversal of 22634299809 is 90899243622.

The square root of 22634299809 is 150447.

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., 10163664225 + 12470635584 = 100815^2 + 111672^2 .

It is not a de Polignac number, because 22634299809 - 2³ = 22634299801 is a prime.

It is a super-4 number, since 4×22634299809⁴ (a number of 43 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (22634299801) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 233343249 + ... + 233343345.

Almost surely, 2^22634299809 is an apocalyptic number.

22634299809 is the 150447-th square number.

22634299809 is the 75224-th centered octagonal number.

It is an amenable number.

22634299809 is a deficient number, since it is larger than the sum of its proper divisors (14465370162).

22634299809 is an equidigital number, since it uses as much as digits as its factorization.

22634299809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316 (or 158 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 54.

The spelling of 22634299809 in words is "twenty-two billion, six hundred thirty-four million, two hundred ninety-nine thousand, eight hundred nine".