18743743239118 has 8 divisors (see below), whose sum is σ = 28124927757720. Its totient is φ = 9368767319880.

The previous prime is 18743743239073. The next prime is 18743743239119. The reversal of 18743743239118 is 81193234734781.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×18743743239118² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18743743239119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1552142293 + ... + 1552154368.

It is an arithmetic number, because the mean of its divisors is an integer number (3515615969715).

Almost surely, 2^{18743743239118} is an apocalyptic number.

18743743239118 is a deficient number, since it is larger than the sum of its proper divisors (9381184518602).

18743743239118 is a wasteful number, since it uses less digits than its factorization.

18743743239118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3104299682.

The product of its digits is 24385536, while the sum is 61.

The spelling of 18743743239118 in words is "eighteen trillion, seven hundred forty-three billion, seven hundred forty-three million, two hundred thirty-nine thousand, one hundred eighteen".