2218743863 has 8 divisors (see below), whose sum is σ = 2587456800. Its totient is φ = 1901780160.

The previous prime is 2218743847. The next prime is 2218743871. The reversal of 2218743863 is 3683478122.

2218743863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2218743863 - 2⁴ = 2218743847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2218703863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3233978 + ... + 3234663.

It is an arithmetic number, because the mean of its divisors is an integer number (323432100).

Almost surely, 2^2218743863 is an apocalyptic number.

2218743863 is a deficient number, since it is larger than the sum of its proper divisors (368712937).

2218743863 is an frugal number, since it uses more digits than its factorization.

2218743863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6468662 (or 6468648 counting only the distinct ones).

The product of its digits is 387072, while the sum is 44.

The square root of 2218743863 is about 47103.5440598688. The cubic root of 2218743863 is about 1304.2746590378.

The spelling of 2218743863 in words is "two billion, two hundred eighteen million, seven hundred forty-three thousand, eight hundred sixty-three".