23543765532 has 144 divisors (see below), whose sum is σ = 70841901312. Its totient is φ = 6697468800.

The previous prime is 23543765521. The next prime is 23543765537. The reversal of 23543765532 is 23556734532.

23543765532 is a `hidden beast` number, since 2 + 3 + 5 + 43 + 76 + 5 + 532 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23543765537) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1577907 + ... + 1592757.

It is an arithmetic number, because the mean of its divisors is an integer number (491957648).

Almost surely, 2^23543765532 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23543765532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35420950656).

23543765532 is an abundant number, since it is smaller than the sum of its proper divisors (47298135780).

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

23543765532 is a wasteful number, since it uses less digits than its factorization.

23543765532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15110 (or 15096 counting only the distinct ones).

The product of its digits is 2268000, while the sum is 45.

The spelling of 23543765532 in words is "twenty-three billion, five hundred forty-three million, seven hundred sixty-five thousand, five hundred thirty-two".