18886083911 has 4 divisors (see below), whose sum is σ = 18927410592. Its totient is φ = 18844757232.

The previous prime is 18886083907. The next prime is 18886083947. The reversal of 18886083911 is 11938068881.

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 18886083911 - 2² = 18886083907 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18876083911) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 20662655 + ... + 20663568.

It is an arithmetic number, because the mean of its divisors is an integer number (4731852648).

Almost surely, 2^18886083911 is an apocalyptic number.

18886083911 is a deficient number, since it is larger than the sum of its proper divisors (41326681).

18886083911 is an equidigital number, since it uses as much as digits as its factorization.

18886083911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41326680.

The product of its (nonzero) digits is 663552, while the sum is 53.

The spelling of 18886083911 in words is "eighteen billion, eight hundred eighty-six million, eighty-three thousand, nine hundred eleven".