18074324159 has 4 divisors (see below), whose sum is σ = 18074607216. Its totient is φ = 18074041104.

The previous prime is 18074324137. The next prime is 18074324167. The reversal of 18074324159 is 95142347081.

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 18074324159 - 2³² = 13779356863 is a prime.

It is a super-2 number, since 2×18074324159² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18074324189) 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, 4427 + ... + 190179.

It is an arithmetic number, because the mean of its divisors is an integer number (4518651804).

Almost surely, 2^18074324159 is an apocalyptic number.

18074324159 is a deficient number, since it is larger than the sum of its proper divisors (283057).

18074324159 is an equidigital number, since it uses as much as digits as its factorization.

18074324159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283056.

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 18074324159 in words is "eighteen billion, seventy-four million, three hundred twenty-four thousand, one hundred fifty-nine".