23256355872 has 96 divisors (see below), whose sum is σ = 62913158784. Its totient is φ = 7517542400.

The previous prime is 23256355847. The next prime is 23256355873. The reversal of 23256355872 is 27855365232.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (23256355873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 639622 + ... + 675002.

It is an arithmetic number, because the mean of its divisors is an integer number (655345404).

Almost surely, 2^23256355872 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 23256355872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31456579392).

23256355872 is an abundant number, since it is smaller than the sum of its proper divisors (39656802912).

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

23256355872 is a wasteful number, since it uses less digits than its factorization.

23256355872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35602 (or 35594 counting only the distinct ones).

The product of its digits is 3024000, while the sum is 48.

The spelling of 23256355872 in words is "twenty-three billion, two hundred fifty-six million, three hundred fifty-five thousand, eight hundred seventy-two".