18263673853 has 8 divisors (see below), whose sum is σ = 19159562880. Its totient is φ = 17385525360.

The previous prime is 18263673847. The next prime is 18263673889. The reversal of 18263673853 is 35837636281.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18263673853 - 2³³ = 9673739261 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18263673853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18263673353) 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 7 ways as a sum of consecutive naturals, for example, 4433025 + ... + 4437142.

It is an arithmetic number, because the mean of its divisors is an integer number (2394945360).

Almost surely, 2^18263673853 is an apocalyptic number.

It is an amenable number.

18263673853 is a deficient number, since it is larger than the sum of its proper divisors (895889027).

18263673853 is an equidigital number, since it uses as much as digits as its factorization.

18263673853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8870267.

The product of its digits is 4354560, while the sum is 52.

The spelling of 18263673853 in words is "eighteen billion, two hundred sixty-three million, six hundred seventy-three thousand, eight hundred fifty-three".