22996812609 has 9 divisors (see below), whose sum is σ = 33218275363. Its totient is φ = 15330905112.

The previous prime is 22996812539. The next prime is 22996812623. The reversal of 22996812609 is 90621869922.

It is a happy number.

The square root of 22996812609 is 151647.

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

22996812609 is a `hidden beast` number, since 2 + 29 + 9 + 6 + 8 + 1 + 2 + 609 = 666.

It can be written as a sum of positive squares in only one way, i.e., 17821449009 + 5175363600 = 133497^2 + 71940^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 22996812609 - 2²³ = 22988424001 is a prime.

It is a super-2 number, since 2×22996812609² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22996812409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 429667 + ... + 480215.

Almost surely, 2^22996812609 is an apocalyptic number.

22996812609 is the 151647-th square number.

22996812609 is the 75824-th centered octagonal number.

It is an amenable number.

22996812609 is a deficient number, since it is larger than the sum of its proper divisors (10221462754).

22996812609 is an frugal number, since it uses more digits than its factorization.

22996812609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101104 (or 50552 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The spelling of 22996812609 in words is "twenty-two billion, nine hundred ninety-six million, eight hundred twelve thousand, six hundred nine".