18754278423 has 8 divisors (see below), whose sum is σ = 25019689200. Its totient is φ = 12495859968.

The previous prime is 18754278421. The next prime is 18754278427. The reversal of 18754278423 is 32487245781.

It is a happy number.

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

It is not a de Polignac number, because 18754278423 - 2¹ = 18754278421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18754278421) 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 7 ways as a sum of consecutive naturals, for example, 1741818 + ... + 1752551.

It is an arithmetic number, because the mean of its divisors is an integer number (3127461150).

Almost surely, 2^18754278423 is an apocalyptic number.

18754278423 is a deficient number, since it is larger than the sum of its proper divisors (6265410777).

18754278423 is a wasteful number, since it uses less digits than its factorization.

18754278423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3496161.

The product of its digits is 3010560, while the sum is 51.

The spelling of 18754278423 in words is "eighteen billion, seven hundred fifty-four million, two hundred seventy-eight thousand, four hundred twenty-three".