1838272818203 has 4 divisors (see below), whose sum is σ = 1838469581568. Its totient is φ = 1838076054840.

The previous prime is 1838272818191. The next prime is 1838272818229. The reversal of 1838272818203 is 3028182728381.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1838272818203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1838272818253) by changing a digit.

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, 98367668 + ... + 98386353.

It is an arithmetic number, because the mean of its divisors is an integer number (459617395392).

Almost surely, 2^{1838272818203} is an apocalyptic number.

1838272818203 is a deficient number, since it is larger than the sum of its proper divisors (196763365).

1838272818203 is an equidigital number, since it uses as much as digits as its factorization.

1838272818203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196763364.

The product of its (nonzero) digits is 2064384, while the sum is 53.

The spelling of 1838272818203 in words is "one trillion, eight hundred thirty-eight billion, two hundred seventy-two million, eight hundred eighteen thousand, two hundred three".