18082004543 has 4 divisors (see below), whose sum is σ = 18093119880. Its totient is φ = 18070889208.

The previous prime is 18082004503. The next prime is 18082004573. The reversal of 18082004543 is 34540028081.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18082004543 - 2¹⁴ = 18081988159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18082004503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5555228 + ... + 5558481.

It is an arithmetic number, because the mean of its divisors is an integer number (4523279970).

Almost surely, 2^18082004543 is an apocalyptic number.

18082004543 is a deficient number, since it is larger than the sum of its proper divisors (11115337).

18082004543 is a wasteful number, since it uses less digits than its factorization.

18082004543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11115336.

The product of its (nonzero) digits is 30720, while the sum is 35.

The spelling of 18082004543 in words is "eighteen billion, eighty-two million, four thousand, five hundred forty-three".