18549135095 has 4 divisors (see below), whose sum is σ = 22258962120. Its totient is φ = 14839308072.

The previous prime is 18549135091. The next prime is 18549135097. The reversal of 18549135095 is 59053194581.

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 18549135095 - 2² = 18549135091 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18549135091) 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, 1854913505 + ... + 1854913514.

It is an arithmetic number, because the mean of its divisors is an integer number (5564740530).

Almost surely, 2^18549135095 is an apocalyptic number.

18549135095 is a deficient number, since it is larger than the sum of its proper divisors (3709827025).

18549135095 is an equidigital number, since it uses as much as digits as its factorization.

18549135095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3709827024.

The product of its (nonzero) digits is 972000, while the sum is 50.

The spelling of 18549135095 in words is "eighteen billion, five hundred forty-nine million, one hundred thirty-five thousand, ninety-five".