18716875016 has 32 divisors (see below), whose sum is σ = 42466861440. Its totient is φ = 7549663488.

The previous prime is 18716874997. The next prime is 18716875043. The reversal of 18716875016 is 61057861781.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9829340 + ... + 9831243.

It is an arithmetic number, because the mean of its divisors is an integer number (1327089420).

Almost surely, 2^18716875016 is an apocalyptic number.

It is an amenable number.

18716875016 is an abundant number, since it is smaller than the sum of its proper divisors (23749986424).

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

18716875016 is a wasteful number, since it uses less digits than its factorization.

18716875016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19660613 (or 19660609 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 50.

The spelling of 18716875016 in words is "eighteen billion, seven hundred sixteen million, eight hundred seventy-five thousand, sixteen".