2268963817 has 4 divisors (see below), whose sum is σ = 2269299600. Its totient is φ = 2268628036.

The previous prime is 2268963797. The next prime is 2268963887. The reversal of 2268963817 is 7183698622.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7183698622 = 2 ⋅3591849311.

It is a cyclic number.

It is not a de Polignac number, because 2268963817 - 2³¹ = 121480169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2268963887) 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, 157543 + ... + 171340.

It is an arithmetic number, because the mean of its divisors is an integer number (567324900).

Almost surely, 2^2268963817 is an apocalyptic number.

It is an amenable number.

2268963817 is a deficient number, since it is larger than the sum of its proper divisors (335783).

2268963817 is an equidigital number, since it uses as much as digits as its factorization.

2268963817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335782.

The product of its digits is 1741824, while the sum is 52.

The square root of 2268963817 is about 47633.6416516730. The cubic root of 2268963817 is about 1314.0418291449.

The spelling of 2268963817 in words is "two billion, two hundred sixty-eight million, nine hundred sixty-three thousand, eight hundred seventeen".