23867999136 has 240 divisors, whose sum is σ = 73014923520. Its totient is φ = 7640386560.

The previous prime is 23867999117. The next prime is 23867999173. The reversal of 23867999136 is 63199976832.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 11167860 + ... + 11169996.

It is an arithmetic number, because the mean of its divisors is an integer number (304228848).

Almost surely, 2^23867999136 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 23867999136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36507461760).

23867999136 is an abundant number, since it is smaller than the sum of its proper divisors (49146924384).

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

23867999136 is a wasteful number, since it uses less digits than its factorization.

23867999136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2329 (or 2312 counting only the distinct ones).

The product of its digits is 26453952, while the sum is 63.

The spelling of 23867999136 in words is "twenty-three billion, eight hundred sixty-seven million, nine hundred ninety-nine thousand, one hundred thirty-six".