18286543027 has 4 divisors (see below), whose sum is σ = 19248992680. Its totient is φ = 17324093376.

The previous prime is 18286543019. The next prime is 18286543069. The reversal of 18286543027 is 72034568281.

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 18286543027 - 2³ = 18286543019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18286543007) 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, 481224798 + ... + 481224835.

It is an arithmetic number, because the mean of its divisors is an integer number (4812248170).

Almost surely, 2^18286543027 is an apocalyptic number.

18286543027 is a deficient number, since it is larger than the sum of its proper divisors (962449653).

18286543027 is an equidigital number, since it uses as much as digits as its factorization.

18286543027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962449652.

The product of its (nonzero) digits is 645120, while the sum is 46.

The spelling of 18286543027 in words is "eighteen billion, two hundred eighty-six million, five hundred forty-three thousand, twenty-seven".