23704555728 has 160 divisors (see below), whose sum is σ = 72921047040. Its totient is φ = 6492695040.

The previous prime is 23704555709. The next prime is 23704555769. The reversal of 23704555728 is 82755540732.

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

It is a congruent number.

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, 1103878 + ... + 1125146.

It is an arithmetic number, because the mean of its divisors is an integer number (455756544).

Almost surely, 2^23704555728 is an apocalyptic number.

23704555728 is a gapful number since it is divisible by the number (28) 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 23704555728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36460523520).

23704555728 is an abundant number, since it is smaller than the sum of its proper divisors (49216491312).

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

23704555728 is a wasteful number, since it uses less digits than its factorization.

23704555728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21425 (or 21419 counting only the distinct ones).

The product of its (nonzero) digits is 2352000, while the sum is 48.

The spelling of 23704555728 in words is "twenty-three billion, seven hundred four million, five hundred fifty-five thousand, seven hundred twenty-eight".