23388515904 has 112 divisors (see below), whose sum is σ = 66688086080. Its totient is φ = 7191521280.

The previous prime is 23388515869. The next prime is 23388515957. The reversal of 23388515904 is 40951588332.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5541507 + ... + 5545725.

It is an arithmetic number, because the mean of its divisors is an integer number (595429340).

Almost surely, 2^23388515904 is an apocalyptic number.

23388515904 is a gapful number since it is divisible by the number (24) 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 23388515904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33344043040).

23388515904 is an abundant number, since it is smaller than the sum of its proper divisors (43299570176).

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

23388515904 is a wasteful number, since it uses less digits than its factorization.

23388515904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6468 (or 6458 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 48.

The spelling of 23388515904 in words is "twenty-three billion, three hundred eighty-eight million, five hundred fifteen thousand, nine hundred four".