23886320640 has 704 divisors, whose sum is σ = 98249711616. Its totient is φ = 4814143488.

The previous prime is 23886320597. The next prime is 23886320651. The reversal of 23886320640 is 4602368832.

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

It is a junction number, because it is equal to n+sod(n) for n = 23886320592 and 23886320601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 32148109 + ... + 32148851.

Almost surely, 2^23886320640 is an apocalyptic number.

23886320640 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 23886320640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49124855808).

23886320640 is an abundant number, since it is smaller than the sum of its proper divisors (74363390976).

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

23886320640 is a wasteful number, since it uses less digits than its factorization.

23886320640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814 (or 796 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 42.

The spelling of 23886320640 in words is "twenty-three billion, eight hundred eighty-six million, three hundred twenty thousand, six hundred forty".