87923518928 has 20 divisors (see below), whose sum is σ = 194687792160. Its totient is φ = 37681508064.

The previous prime is 87923518927. The next prime is 87923518933. The reversal of 87923518928 is 82981532978.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87923518927) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392515598 + ... + 392515821.

It is an arithmetic number, because the mean of its divisors is an integer number (9734389608).

Almost surely, 2^87923518928 is an apocalyptic number.

It is an amenable number.

87923518928 is an abundant number, since it is smaller than the sum of its proper divisors (106764273232).

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

87923518928 is a wasteful number, since it uses less digits than its factorization.

87923518928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785031434 (or 785031428 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 62.

The spelling of 87923518928 in words is "eighty-seven billion, nine hundred twenty-three million, five hundred eighteen thousand, nine hundred twenty-eight".