2217343819 has 4 divisors (see below), whose sum is σ = 2313750096. Its totient is φ = 2120937544.

The previous prime is 2217343781. The next prime is 2217343831. The reversal of 2217343819 is 9183437122.

2217343819 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2217343819 - 2⁹ = 2217343307 is a prime.

It is a super-2 number, since 2×2217343819² = 9833227223315009522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2217343889) 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, 48203104 + ... + 48203149.

It is an arithmetic number, because the mean of its divisors is an integer number (578437524).

Almost surely, 2^2217343819 is an apocalyptic number.

2217343819 is a deficient number, since it is larger than the sum of its proper divisors (96406277).

2217343819 is an equidigital number, since it uses as much as digits as its factorization.

2217343819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96406276.

The product of its digits is 72576, while the sum is 40.

The square root of 2217343819 is about 47088.6803701272. The cubic root of 2217343819 is about 1304.0002656212. Note that the first 3 decimals are identical.

The spelling of 2217343819 in words is "two billion, two hundred seventeen million, three hundred forty-three thousand, eight hundred nineteen".