18698117706 has 16 divisors (see below), whose sum is σ = 41551372800. Its totient is φ = 6232705884.

The previous prime is 18698117693. The next prime is 18698117717. The reversal of 18698117706 is 60771189681.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 346261439 = 18698117706 / (1 + 8 + 6 + 9 + 8 + 1 + 1 + 7 + 7 + 0 + 6).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173130666 + ... + 173130773.

It is an arithmetic number, because the mean of its divisors is an integer number (2596960800).

Almost surely, 2^18698117706 is an apocalyptic number.

18698117706 is an abundant number, since it is smaller than the sum of its proper divisors (22853255094).

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

18698117706 is a wasteful number, since it uses less digits than its factorization.

18698117706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346261450 (or 346261444 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 54.

The spelling of 18698117706 in words is "eighteen billion, six hundred ninety-eight million, one hundred seventeen thousand, seven hundred six".