18095105189 has 24 divisors (see below), whose sum is σ = 22145677848. Its totient is φ = 14722767360.

The previous prime is 18095105173. The next prime is 18095105213. The reversal of 18095105189 is 98150159081.

It can be written as a sum of positive squares in 4 ways, for example, as 6729413089 + 11365692100 = 82033^2 + 106610^2 .

It is not a de Polignac number, because 18095105189 - 2⁴ = 18095105173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18095105159) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47384 + ... + 196049.

It is an arithmetic number, because the mean of its divisors is an integer number (922736577).

Almost surely, 2^18095105189 is an apocalyptic number.

It is an amenable number.

18095105189 is a deficient number, since it is larger than the sum of its proper divisors (4050572659).

18095105189 is a wasteful number, since it uses less digits than its factorization.

18095105189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243525 (or 243518 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 47.

The spelling of 18095105189 in words is "eighteen billion, ninety-five million, one hundred five thousand, one hundred eighty-nine".