18231423743 has 6 divisors (see below), whose sum is σ = 19741719384. Its totient is φ = 16829006376.

The previous prime is 18231423709. The next prime is 18231423767. The reversal of 18231423743 is 34732413281.

It is not a de Polignac number, because 18231423743 - 2²⁰ = 18230375167 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18231423697 and 18231423706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18231423703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53938955 + ... + 53939292.

It is an arithmetic number, because the mean of its divisors is an integer number (3290286564).

Almost surely, 2^18231423743 is an apocalyptic number.

18231423743 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

18231423743 is a deficient number, since it is larger than the sum of its proper divisors (1510295641).

18231423743 is a wasteful number, since it uses less digits than its factorization.

18231423743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107878273 (or 107878260 counting only the distinct ones).

The product of its digits is 96768, while the sum is 38.

The spelling of 18231423743 in words is "eighteen billion, two hundred thirty-one million, four hundred twenty-three thousand, seven hundred forty-three".