18541841113 has 4 divisors (see below), whose sum is σ = 18546751440. Its totient is φ = 18536930788.

The previous prime is 18541841083. The next prime is 18541841147. The reversal of 18541841113 is 31114814581.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18541841113 - 2⁵ = 18541841081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18541871113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2449495 + ... + 2457052.

It is an arithmetic number, because the mean of its divisors is an integer number (4636687860).

Almost surely, 2^18541841113 is an apocalyptic number.

It is an amenable number.

18541841113 is a deficient number, since it is larger than the sum of its proper divisors (4910327).

18541841113 is an equidigital number, since it uses as much as digits as its factorization.

18541841113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4910326.

The product of its digits is 15360, while the sum is 37.

The spelling of 18541841113 in words is "eighteen billion, five hundred forty-one million, eight hundred forty-one thousand, one hundred thirteen".