18392377823 has 4 divisors (see below), whose sum is σ = 19192046448. Its totient is φ = 17592709200.

The previous prime is 18392377793. The next prime is 18392377849. The reversal of 18392377823 is 32877329381.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 18392377823 - 2²⁰ = 18391329247 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 (18392377873) 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, 399834278 + ... + 399834323.

It is an arithmetic number, because the mean of its divisors is an integer number (4798011612).

Almost surely, 2^18392377823 is an apocalyptic number.

18392377823 is a deficient number, since it is larger than the sum of its proper divisors (799668625).

18392377823 is an equidigital number, since it uses as much as digits as its factorization.

18392377823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799668624.

The product of its digits is 3048192, while the sum is 53.

The spelling of 18392377823 in words is "eighteen billion, three hundred ninety-two million, three hundred seventy-seven thousand, eight hundred twenty-three".