18835700216803 has 4 divisors (see below), whose sum is σ = 19154949373080. Its totient is φ = 18516451060528.

The previous prime is 18835700216777. The next prime is 18835700216833. The reversal of 18835700216803 is 30861200753881.

It is a happy number.

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 18835700216803 - 2⁵ = 18835700216771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18835700216833) 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, 159624578050 + ... + 159624578167.

It is an arithmetic number, because the mean of its divisors is an integer number (4788737343270).

Almost surely, 2^{18835700216803} is an apocalyptic number.

18835700216803 is a deficient number, since it is larger than the sum of its proper divisors (319249156277).

18835700216803 is an equidigital number, since it uses as much as digits as its factorization.

18835700216803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319249156276.

The product of its (nonzero) digits is 1935360, while the sum is 52.

The spelling of 18835700216803 in words is "eighteen trillion, eight hundred thirty-five billion, seven hundred million, two hundred sixteen thousand, eight hundred three".