23613850565 has 48 divisors (see below), whose sum is σ = 30982362624. Its totient is φ = 17241396480.

The previous prime is 23613850543. The next prime is 23613850567. The reversal of 23613850565 is 56505831632.

It is not a de Polignac number, because 23613850565 - 2²⁸ = 23345415109 is a prime.

It is a super-2 number, since 2×23613850565² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23613850567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8066132 + ... + 8069058.

It is an arithmetic number, because the mean of its divisors is an integer number (645465888).

Almost surely, 2^23613850565 is an apocalyptic number.

It is an amenable number.

23613850565 is a deficient number, since it is larger than the sum of its proper divisors (7368512059).

23613850565 is a wasteful number, since it uses less digits than its factorization.

23613850565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3090 (or 3059 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 44.

The spelling of 23613850565 in words is "twenty-three billion, six hundred thirteen million, eight hundred fifty thousand, five hundred sixty-five".