23821638960 has 320 divisors, whose sum is σ = 91780411392. Its totient is φ = 4985929728.

The previous prime is 23821638947. The next prime is 23821638961. The reversal of 23821638960 is 6983612832.

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 (23821638961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1045449 + ... + 1067991.

Almost surely, 2^23821638960 is an apocalyptic number.

23821638960 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 23821638960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45890205696).

23821638960 is an abundant number, since it is smaller than the sum of its proper divisors (67958772432).

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

23821638960 is a wasteful number, since it uses less digits than its factorization.

23821638960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22620 (or 22614 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 48.

The spelling of 23821638960 in words is "twenty-three billion, eight hundred twenty-one million, six hundred thirty-eight thousand, nine hundred sixty".