23755579440 has 160 divisors (see below), whose sum is σ = 78294988800. Its totient is φ = 5944992768.

The previous prime is 23755579399. The next prime is 23755579511. The reversal of 23755579440 is 4497555732.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 251961 + ... + 333159.

It is an arithmetic number, because the mean of its divisors is an integer number (489343680).

Almost surely, 2^23755579440 is an apocalyptic number.

23755579440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23755579440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39147494400).

23755579440 is an abundant number, since it is smaller than the sum of its proper divisors (54539409360).

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

23755579440 is a wasteful number, since it uses less digits than its factorization.

23755579440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81291 (or 81285 counting only the distinct ones).

The product of its (nonzero) digits is 5292000, while the sum is 51.

The spelling of 23755579440 in words is "twenty-three billion, seven hundred fifty-five million, five hundred seventy-nine thousand, four hundred forty".