23989681352 has 128 divisors (see below), whose sum is σ = 60809011200. Its totient is φ = 8599903488.

The previous prime is 23989681337. The next prime is 23989681357. The reversal of 23989681352 is 25318698932.

It is a super-2 number, since 2×23989681352² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is not an unprimeable number, because it can be changed into a prime (23989681357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 280433 + ... + 355839.

It is an arithmetic number, because the mean of its divisors is an integer number (475070400).

Almost surely, 2^23989681352 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 23989681352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30404505600).

23989681352 is an abundant number, since it is smaller than the sum of its proper divisors (36819329848).

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

23989681352 is a wasteful number, since it uses less digits than its factorization.

23989681352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75475 (or 75471 counting only the distinct ones).

The product of its digits is 5598720, while the sum is 56.

The spelling of 23989681352 in words is "twenty-three billion, nine hundred eighty-nine million, six hundred eighty-one thousand, three hundred fifty-two".