2216684769 has 16 divisors (see below), whose sum is σ = 3189047232. Its totient is φ = 1361492928.

The previous prime is 2216684747. The next prime is 2216684801. The reversal of 2216684769 is 9674866122.

2216684769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-2216684769 is a prime.

It is a super-2 number, since 2×2216684769² = 9827382730233166722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2216684369) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33942 + ... + 74735.

It is an arithmetic number, because the mean of its divisors is an integer number (199315452).

Almost surely, 2^2216684769 is an apocalyptic number.

It is an amenable number.

2216684769 is a deficient number, since it is larger than the sum of its proper divisors (972362463).

2216684769 is a wasteful number, since it uses less digits than its factorization.

2216684769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109216.

The product of its digits is 1741824, while the sum is 51.

The square root of 2216684769 is about 47081.6818837220. The cubic root of 2216684769 is about 1303.8710589962.

The spelling of 2216684769 in words is "two billion, two hundred sixteen million, six hundred eighty-four thousand, seven hundred sixty-nine".