23966921900 has 18 divisors (see below), whose sum is σ = 52008220740. Its totient is φ = 9586768720.

The previous prime is 23966921857. The next prime is 23966921921. The reversal of 23966921900 is 912966932.

It is a super-2 number, since 2×23966921900² (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 5 ways as a sum of consecutive naturals, for example, 119834510 + ... + 119834709.

Almost surely, 2^23966921900 is an apocalyptic number.

23966921900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23966921900 is an abundant number, since it is smaller than the sum of its proper divisors (28041298840).

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

23966921900 is a wasteful number, since it uses less digits than its factorization.

23966921900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239669233 (or 239669226 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 47.

It can be divided in two parts, 2396 and 6921900, that added together give a palindrome (6924296).

The spelling of 23966921900 in words is "twenty-three billion, nine hundred sixty-six million, nine hundred twenty-one thousand, nine hundred".