23987808887 has 8 divisors (see below), whose sum is σ = 27415927200. Its totient is φ = 20560012704.

The previous prime is 23987808857. The next prime is 23987808913. The reversal of 23987808887 is 78880878932.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23987808887 - 2¹⁰ = 23987807863 is a prime.

It is a super-3 number, since 3×23987808887³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23987808827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108689 + ... + 244517.

It is an arithmetic number, because the mean of its divisors is an integer number (3426990900).

Almost surely, 2^23987808887 is an apocalyptic number.

23987808887 is a deficient number, since it is larger than the sum of its proper divisors (3428118313).

23987808887 is a wasteful number, since it uses less digits than its factorization.

23987808887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161065.

The product of its (nonzero) digits is 86704128, while the sum is 68.

The spelling of 23987808887 in words is "twenty-three billion, nine hundred eighty-seven million, eight hundred eight thousand, eight hundred eighty-seven".