23989618660 has 48 divisors (see below), whose sum is σ = 58014633600. Its totient is φ = 8162219520.

The previous prime is 23989618651. The next prime is 23989618703. The reversal of 23989618660 is 6681698932.

It is a junction number, because it is equal to n+sod(n) for n = 23989618595 and 23989618604.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 635685 + ... + 672364.

It is an arithmetic number, because the mean of its divisors is an integer number (1208638200).

Almost surely, 2^23989618660 is an apocalyptic number.

23989618660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23989618660 is an abundant number, since it is smaller than the sum of its proper divisors (34025014940).

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

23989618660 is a wasteful number, since it uses less digits than its factorization.

23989618660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308196 (or 1308194 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 58.

The spelling of 23989618660 in words is "twenty-three billion, nine hundred eighty-nine million, six hundred eighteen thousand, six hundred sixty".