18743743674 has 24 divisors (see below), whose sum is σ = 40617351840. Its totient is φ = 6247005768.

The previous prime is 18743743633. The next prime is 18743743709. The reversal of 18743743674 is 47634734781.

It is a self number, because there is not a number n which added to its sum of digits gives 18743743674.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 57819 + ... + 202065.

It is an arithmetic number, because the mean of its divisors is an integer number (1692389660).

Almost surely, 2^18743743674 is an apocalyptic number.

18743743674 is an abundant number, since it is smaller than the sum of its proper divisors (21873608166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18743743674 is a wasteful number, since it uses less digits than its factorization.

18743743674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151474 (or 151471 counting only the distinct ones).

The product of its digits is 9483264, while the sum is 54.

The spelling of 18743743674 in words is "eighteen billion, seven hundred forty-three million, seven hundred forty-three thousand, six hundred seventy-four".