23726613988 has 36 divisors (see below), whose sum is σ = 52691576112. Its totient is φ = 9244134480.

The previous prime is 23726613979. The next prime is 23726614019. The reversal of 23726613988 is 88931662732.

It is a super-2 number, since 2×23726613988² (a number of 22 digits) contains 22 as substring.

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, 5500306 + ... + 5504617.

It is an arithmetic number, because the mean of its divisors is an integer number (1463654892).

Almost surely, 2^23726613988 is an apocalyptic number.

23726613988 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

23726613988 is an abundant number, since it is smaller than the sum of its proper divisors (28964962124).

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

23726613988 is a wasteful number, since it uses less digits than its factorization.

23726613988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11004952 (or 11004943 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 55.

The spelling of 23726613988 in words is "twenty-three billion, seven hundred twenty-six million, six hundred thirteen thousand, nine hundred eighty-eight".