23997609018840 has 64 divisors (see below), whose sum is σ = 71993954995200. Its totient is φ = 6399262143872.

The previous prime is 23997609018839. The next prime is 23997609018847. The reversal of 23997609018840 is 4881090679932.

It is a super-2 number, since 2×23997609018840² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23997609018847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6287971 + ... + 9355949.

It is an arithmetic number, because the mean of its divisors is an integer number (1124905546800).

Almost surely, 2^{23997609018840} is an apocalyptic number.

23997609018840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23997609018840 is an abundant number, since it is smaller than the sum of its proper divisors (47996345976360).

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

23997609018840 is a wasteful number, since it uses less digits than its factorization.

23997609018840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3133176 (or 3133172 counting only the distinct ones).

The product of its (nonzero) digits is 47029248, while the sum is 66.

The spelling of 23997609018840 in words is "twenty-three trillion, nine hundred ninety-seven billion, six hundred nine million, eighteen thousand, eight hundred forty".