18674831423 has 4 divisors (see below), whose sum is σ = 18675742488. Its totient is φ = 18673920360.

The previous prime is 18674831419. The next prime is 18674831431. The reversal of 18674831423 is 32413847681.

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 18674831423 - 2² = 18674831419 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 (18674831723) 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, 424061 + ... + 466022.

It is an arithmetic number, because the mean of its divisors is an integer number (4668935622).

Almost surely, 2^18674831423 is an apocalyptic number.

18674831423 is a deficient number, since it is larger than the sum of its proper divisors (911065).

18674831423 is an equidigital number, since it uses as much as digits as its factorization.

18674831423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911064.

The product of its digits is 774144, while the sum is 47.

The spelling of 18674831423 in words is "eighteen billion, six hundred seventy-four million, eight hundred thirty-one thousand, four hundred twenty-three".