23871255720 has 256 divisors, whose sum is σ = 81416966400. Its totient is φ = 5550612480.

The previous prime is 23871255691. The next prime is 23871255731. The reversal of 23871255720 is 2755217832.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12477484 + ... + 12479396.

It is an arithmetic number, because the mean of its divisors is an integer number (318035025).

Almost surely, 2^23871255720 is an apocalyptic number.

23871255720 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 23871255720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40708483200).

23871255720 is an abundant number, since it is smaller than the sum of its proper divisors (57545710680).

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

23871255720 is a wasteful number, since it uses less digits than its factorization.

23871255720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2380 (or 2376 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 42.

The spelling of 23871255720 in words is "twenty-three billion, eight hundred seventy-one million, two hundred fifty-five thousand, seven hundred twenty".