18742024159 has 4 divisors (see below), whose sum is σ = 18796036104. Its totient is φ = 18688012216.

The previous prime is 18742024157. The next prime is 18742024163. The reversal of 18742024159 is 95142024781.

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 18742024159 - 2¹ = 18742024157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18742024151) 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, 27005452 + ... + 27006145.

It is an arithmetic number, because the mean of its divisors is an integer number (4699009026).

Almost surely, 2^18742024159 is an apocalyptic number.

18742024159 is a deficient number, since it is larger than the sum of its proper divisors (54011945).

18742024159 is an equidigital number, since it uses as much as digits as its factorization.

18742024159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54011944.

The product of its (nonzero) digits is 161280, while the sum is 43.

The spelling of 18742024159 in words is "eighteen billion, seven hundred forty-two million, twenty-four thousand, one hundred fifty-nine".