23032537856 has 72 divisors (see below), whose sum is σ = 49867214544. Its totient is φ = 10574397440.

The previous prime is 23032537831. The next prime is 23032537877. The reversal of 23032537856 is 65873523032.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113891 + ... + 242973.

It is an arithmetic number, because the mean of its divisors is an integer number (692600202).

Almost surely, 2^23032537856 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 23032537856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24933607272).

23032537856 is an abundant number, since it is smaller than the sum of its proper divisors (26834676688).

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

23032537856 is a wasteful number, since it uses less digits than its factorization.

23032537856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129157 (or 129143 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 44.

The spelling of 23032537856 in words is "twenty-three billion, thirty-two million, five hundred thirty-seven thousand, eight hundred fifty-six".