18734541736 has 16 divisors (see below), whose sum is σ = 36260403840. Its totient is φ = 9065100720.

The previous prime is 18734541713. The next prime is 18734541769. The reversal of 18734541736 is 63714543781.

It is a self number, because there is not a number n which added to its sum of digits gives 18734541736.

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 3 ways as a sum of consecutive naturals, for example, 37771006 + ... + 37771501.

It is an arithmetic number, because the mean of its divisors is an integer number (2266275240).

Almost surely, 2^18734541736 is an apocalyptic number.

It is an amenable number.

18734541736 is a deficient number, since it is larger than the sum of its proper divisors (17525862104).

18734541736 is a wasteful number, since it uses less digits than its factorization.

18734541736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75542544 (or 75542540 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 49.

The spelling of 18734541736 in words is "eighteen billion, seven hundred thirty-four million, five hundred forty-one thousand, seven hundred thirty-six".