18482543843 has 4 divisors (see below), whose sum is σ = 18912370488. Its totient is φ = 18052717200.

The previous prime is 18482543839. The next prime is 18482543861. The reversal of 18482543843 is 34834528481.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34834528481 = 2927 ⋅11901103.

It is a cyclic number.

It is not a de Polignac number, because 18482543843 - 2² = 18482543839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18482543791 and 18482543800.

It is not an unprimeable number, because it can be changed into a prime (18482543543) 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, 214913258 + ... + 214913343.

It is an arithmetic number, because the mean of its divisors is an integer number (4728092622).

Almost surely, 2^18482543843 is an apocalyptic number.

18482543843 is a deficient number, since it is larger than the sum of its proper divisors (429826645).

18482543843 is an equidigital number, since it uses as much as digits as its factorization.

18482543843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429826644.

The product of its digits is 2949120, while the sum is 50.

The spelling of 18482543843 in words is "eighteen billion, four hundred eighty-two million, five hundred forty-three thousand, eight hundred forty-three".