23632573521 has 32 divisors (see below), whose sum is σ = 33319413760. Its totient is φ = 14858116416.

The previous prime is 23632573501. The next prime is 23632573561. The reversal of 23632573521 is 12537523632.

It is not a de Polignac number, because 23632573521 - 2³⁰ = 22558831697 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23632573521.

It is not an unprimeable number, because it can be changed into a prime (23632573501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17808360 + ... + 17809686.

It is an arithmetic number, because the mean of its divisors is an integer number (1041231680).

Almost surely, 2^23632573521 is an apocalyptic number.

It is an amenable number.

23632573521 is a deficient number, since it is larger than the sum of its proper divisors (9686840239).

23632573521 is a wasteful number, since it uses less digits than its factorization.

23632573521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2533.

The product of its digits is 226800, while the sum is 39.

The spelling of 23632573521 in words is "twenty-three billion, six hundred thirty-two million, five hundred seventy-three thousand, five hundred twenty-one".