22726574609 has 4 divisors (see below), whose sum is σ = 22727601204. Its totient is φ = 22725548016.

The previous prime is 22726574587. The next prime is 22726574621. The reversal of 22726574609 is 90647562722.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1672564609 + 21054010000 = 40897^2 + 145100^2 .

It is a cyclic number.

It is not a de Polignac number, because 22726574609 - 2¹⁶ = 22726509073 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22726574509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 479342 + ... + 524615.

It is an arithmetic number, because the mean of its divisors is an integer number (5681900301).

Almost surely, 2^22726574609 is an apocalyptic number.

It is an amenable number.

22726574609 is a deficient number, since it is larger than the sum of its proper divisors (1026595).

22726574609 is a wasteful number, since it uses less digits than its factorization.

22726574609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026594.

The product of its (nonzero) digits is 2540160, while the sum is 50.

The spelling of 22726574609 in words is "twenty-two billion, seven hundred twenty-six million, five hundred seventy-four thousand, six hundred nine".