18742047254 has 16 divisors (see below), whose sum is σ = 32460455328. Its totient is φ = 7949498112.

The previous prime is 18742047221. The next prime is 18742047277. The reversal of 18742047254 is 45274024781.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6899249 + ... + 6901964.

It is an arithmetic number, because the mean of its divisors is an integer number (2028778458).

Almost surely, 2^18742047254 is an apocalyptic number.

18742047254 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18742047254 is a deficient number, since it is larger than the sum of its proper divisors (13718408074).

18742047254 is a wasteful number, since it uses less digits than its factorization.

18742047254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13801319.

The product of its (nonzero) digits is 501760, while the sum is 44.

The spelling of 18742047254 in words is "eighteen billion, seven hundred forty-two million, forty-seven thousand, two hundred fifty-four".