23908785408 has 108 divisors (see below), whose sum is σ = 69012373248. Its totient is φ = 7960642560.

The previous prime is 23908785379. The next prime is 23908785419. The reversal of 23908785408 is 80458780932.

It is a happy number.

23908785408 is a `hidden beast` number, since 2 + 3 + 90 + 8 + 7 + 8 + 540 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2231841 + ... + 2242527.

It is an arithmetic number, because the mean of its divisors is an integer number (639003456).

Almost surely, 2^23908785408 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 23908785408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34506186624).

23908785408 is an abundant number, since it is smaller than the sum of its proper divisors (45103587840).

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

23908785408 is a wasteful number, since it uses less digits than its factorization.

23908785408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11680 (or 11663 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 23908785408 in words is "twenty-three billion, nine hundred eight million, seven hundred eighty-five thousand, four hundred eight".