23772565140 has 48 divisors (see below), whose sum is σ = 68710387200. Its totient is φ = 6134855040.

The previous prime is 23772565087. The next prime is 23772565169. The reversal of 23772565140 is 4156527732.

It is a junction number, because it is equal to n+sod(n) for n = 23772565092 and 23772565101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6388615 + ... + 6392334.

It is an arithmetic number, because the mean of its divisors is an integer number (1431466400).

Almost surely, 2^23772565140 is an apocalyptic number.

23772565140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23772565140 is an abundant number, since it is smaller than the sum of its proper divisors (44937822060).

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

23772565140 is a wasteful number, since it uses less digits than its factorization.

23772565140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12780992 (or 12780990 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 42.

The spelling of 23772565140 in words is "twenty-three billion, seven hundred seventy-two million, five hundred sixty-five thousand, one hundred forty".