23179823520 has 192 divisors, whose sum is σ = 83817732096. Its totient is φ = 5274731520.

The previous prime is 23179823497. The next prime is 23179823521. The reversal of 23179823520 is 2532897132.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (23179823521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 747525 + ... + 777915.

It is an arithmetic number, because the mean of its divisors is an integer number (436550688).

Almost surely, 2^23179823520 is an apocalyptic number.

23179823520 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 23179823520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41908866048).

23179823520 is an abundant number, since it is smaller than the sum of its proper divisors (60637908576).

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

23179823520 is a wasteful number, since it uses less digits than its factorization.

23179823520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30643 (or 30635 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 23179823520 in words is "twenty-three billion, one hundred seventy-nine million, eight hundred twenty-three thousand, five hundred twenty".