18109154575 has 6 divisors (see below), whose sum is σ = 22455351704. Its totient is φ = 14487323640.

The previous prime is 18109154549. The next prime is 18109154593. The reversal of 18109154575 is 57545190181.

It is not a de Polignac number, because 18109154575 - 2¹³ = 18109146383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 362183067 + ... + 362183116.

Almost surely, 2^18109154575 is an apocalyptic number.

18109154575 is a deficient number, since it is larger than the sum of its proper divisors (4346197129).

18109154575 is an equidigital number, since it uses as much as digits as its factorization.

18109154575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724366193 (or 724366188 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 46.

The spelling of 18109154575 in words is "eighteen billion, one hundred nine million, one hundred fifty-four thousand, five hundred seventy-five".