18742674542 has 16 divisors (see below), whose sum is σ = 28431312000. Its totient is φ = 9265855032.

The previous prime is 18742674473. The next prime is 18742674547. The reversal of 18742674542 is 24547624781.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18742674547) 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, 61709 + ... + 203207.

It is an arithmetic number, because the mean of its divisors is an integer number (1776957000).

Almost surely, 2^18742674542 is an apocalyptic number.

18742674542 is a deficient number, since it is larger than the sum of its proper divisors (9688637458).

18742674542 is a wasteful number, since it uses less digits than its factorization.

18742674542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142247.

The product of its digits is 3010560, while the sum is 50.

The spelling of 18742674542 in words is "eighteen billion, seven hundred forty-two million, six hundred seventy-four thousand, five hundred forty-two".