18696084163 has 4 divisors (see below), whose sum is σ = 19002577408. Its totient is φ = 18389590920.

The previous prime is 18696084161. The next prime is 18696084259. The reversal of 18696084163 is 36148069681.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18696084163 - 2¹ = 18696084161 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18696084163.

It is not an unprimeable number, because it can be changed into a prime (18696084161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153246531 + ... + 153246652.

It is an arithmetic number, because the mean of its divisors is an integer number (4750644352).

Almost surely, 2^18696084163 is an apocalyptic number.

18696084163 is a deficient number, since it is larger than the sum of its proper divisors (306493245).

18696084163 is an equidigital number, since it uses as much as digits as its factorization.

18696084163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306493244.

The product of its (nonzero) digits is 1492992, while the sum is 52.

The spelling of 18696084163 in words is "eighteen billion, six hundred ninety-six million, eighty-four thousand, one hundred sixty-three".