23181208752 has 80 divisors (see below), whose sum is σ = 64983840768. Its totient is φ = 7078206720.

The previous prime is 23181208747. The next prime is 23181208753. The reversal of 23181208752 is 25780218132.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 23181208752.

It is not an unprimeable number, because it can be changed into a prime (23181208753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60048 + ... + 223535.

Almost surely, 2^23181208752 is an apocalyptic number.

It is an amenable number.

23181208752 is an abundant number, since it is smaller than the sum of its proper divisors (41802632016).

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

23181208752 is a wasteful number, since it uses less digits than its factorization.

23181208752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283738 (or 283732 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The spelling of 23181208752 in words is "twenty-three billion, one hundred eighty-one million, two hundred eight thousand, seven hundred fifty-two".