23531169536 has 36 divisors (see below), whose sum is σ = 53680484592. Its totient is φ = 10084786176.

The previous prime is 23531169527. The next prime is 23531169551. The reversal of 23531169536 is 63596113532.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6563825 + ... + 6567408.

It is an arithmetic number, because the mean of its divisors is an integer number (1491124572).

Almost surely, 2^23531169536 is an apocalyptic number.

It is an amenable number.

23531169536 is an abundant number, since it is smaller than the sum of its proper divisors (30149315056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23531169536 is an equidigital number, since it uses as much as digits as its factorization.

23531169536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13131256 (or 13131242 counting only the distinct ones).

The product of its digits is 437400, while the sum is 44.

The spelling of 23531169536 in words is "twenty-three billion, five hundred thirty-one million, one hundred sixty-nine thousand, five hundred thirty-six".