18706116708 has 36 divisors (see below), whose sum is σ = 47772388300. Its totient is φ = 6171088896.

The previous prime is 18706116647. The next prime is 18706116739. The reversal of 18706116708 is 80761160781.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10132838244 + 8573278464 = 100662^2 + 92592^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2674933 + ... + 2681916.

Almost surely, 2^18706116708 is an apocalyptic number.

18706116708 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18706116708 is an abundant number, since it is smaller than the sum of its proper divisors (29066271592).

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

18706116708 is a wasteful number, since it uses less digits than its factorization.

18706116708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5356956 (or 5356951 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 45.

The spelling of 18706116708 in words is "eighteen billion, seven hundred six million, one hundred sixteen thousand, seven hundred eight".