23242591872 has 128 divisors (see below), whose sum is σ = 69278155200. Its totient is φ = 7670707200.

The previous prime is 23242591861. The next prime is 23242591873. The reversal of 23242591872 is 27819524232.

23242591872 is a `hidden beast` number, since 2 + 324 + 259 + 1 + 8 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-3 number, since 3×23242591872³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (23242591873) 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, 315763 + ... + 382349.

Almost surely, 2^23242591872 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 23242591872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34639077600).

23242591872 is an abundant number, since it is smaller than the sum of its proper divisors (46035563328).

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

23242591872 is a wasteful number, since it uses less digits than its factorization.

23242591872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66711 (or 66693 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The spelling of 23242591872 in words is "twenty-three billion, two hundred forty-two million, five hundred ninety-one thousand, eight hundred seventy-two".