23687478900 has 108 divisors (see below), whose sum is σ = 74299904224. Its totient is φ = 6312168000.

The previous prime is 23687478889. The next prime is 23687478907. The reversal of 23687478900 is 987478632.

23687478900 is a `hidden beast` number, since 2 + 3 + 6 + 87 + 478 + 90 + 0 = 666.

It is a super-2 number, since 2×23687478900² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23687478907) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1369305 + ... + 1386495.

Almost surely, 2^23687478900 is an apocalyptic number.

23687478900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23687478900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37149952112).

23687478900 is an abundant number, since it is smaller than the sum of its proper divisors (50612425324).

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

23687478900 is a wasteful number, since it uses less digits than its factorization.

23687478900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18742 (or 18732 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 23687478900 in words is "twenty-three billion, six hundred eighty-seven million, four hundred seventy-eight thousand, nine hundred".