23174720536 has 24 divisors (see below), whose sum is σ = 47761951860. Its totient is φ = 10533963440.

The previous prime is 23174720483. The next prime is 23174720539. The reversal of 23174720536 is 63502747132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23174720539) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11969446 + ... + 11971381.

Almost surely, 2^23174720536 is an apocalyptic number.

It is an amenable number.

23174720536 is an abundant number, since it is smaller than the sum of its proper divisors (24587231324).

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

23174720536 is a wasteful number, since it uses less digits than its factorization.

23174720536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23940855 (or 23940840 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 40.

The spelling of 23174720536 in words is "twenty-three billion, one hundred seventy-four million, seven hundred twenty thousand, five hundred thirty-six".