23530639609 has 9 divisors (see below), whose sum is σ = 23675253381. Its totient is φ = 23386906620.

The previous prime is 23530639597. The next prime is 23530639631. The reversal of 23530639609 is 90693603532.

The square root of 23530639609 is 153397.

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

It is not a de Polignac number, because 23530639609 - 2⁵ = 23530639577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23530639309) 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, 32366404 + ... + 32367130.

It is an arithmetic number, because the mean of its divisors is an integer number (2630583709).

Almost surely, 2^23530639609 is an apocalyptic number.

23530639609 is the 153397-th square number.

23530639609 is the 76699-th centered octagonal number.

It is an amenable number.

23530639609 is a deficient number, since it is larger than the sum of its proper divisors (144613772).

23530639609 is an frugal number, since it uses more digits than its factorization.

23530639609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1876 (or 938 counting only the distinct ones).

The product of its (nonzero) digits is 787320, while the sum is 46.

The spelling of 23530639609 in words is "twenty-three billion, five hundred thirty million, six hundred thirty-nine thousand, six hundred nine".