23689440824 has 96 divisors (see below), whose sum is σ = 54656169120. Its totient is φ = 9577903104.

The previous prime is 23689440821. The next prime is 23689440833. The reversal of 23689440824 is 42804498632.

It is a happy number.

It is a super-2 number, since 2×23689440824² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23689440821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 640172 + ... + 676164.

It is an arithmetic number, because the mean of its divisors is an integer number (569335095).

Almost surely, 2^23689440824 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 23689440824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27328084560).

23689440824 is an abundant number, since it is smaller than the sum of its proper divisors (30966728296).

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

23689440824 is a wasteful number, since it uses less digits than its factorization.

23689440824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36109 (or 36098 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 50.

The spelling of 23689440824 in words is "twenty-three billion, six hundred eighty-nine million, four hundred forty thousand, eight hundred twenty-four".