18754278422 has 16 divisors (see below), whose sum is σ = 30808240272. Its totient is φ = 8491499520.

The previous prime is 18754278421. The next prime is 18754278427. The reversal of 18754278422 is 22487245781.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1652843 + ... + 1664150.

It is an arithmetic number, because the mean of its divisors is an integer number (1925515017).

Almost surely, 2^18754278422 is an apocalyptic number.

18754278422 is a deficient number, since it is larger than the sum of its proper divisors (12053961850).

18754278422 is a wasteful number, since it uses less digits than its factorization.

18754278422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3317263.

The product of its digits is 2007040, while the sum is 50.

The spelling of 18754278422 in words is "eighteen billion, seven hundred fifty-four million, two hundred seventy-eight thousand, four hundred twenty-two".