2229838818817 has 4 divisors (see below), whose sum is σ = 2229883889220. Its totient is φ = 2229793748416.

The previous prime is 2229838818793. The next prime is 2229838818847. The reversal of 2229838818817 is 7188188389222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25754151361 + 2204084667456 = 160481^2 + 1484616^2 .

It is a cyclic number.

It is not a de Polignac number, because 2229838818817 - 2⁷ = 2229838818689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2229838818847) 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, 22460908 + ... + 22559965.

It is an arithmetic number, because the mean of its divisors is an integer number (557470972305).

Almost surely, 2^{2229838818817} is an apocalyptic number.

It is an amenable number.

2229838818817 is a deficient number, since it is larger than the sum of its proper divisors (45070403).

2229838818817 is an equidigital number, since it uses as much as digits as its factorization.

2229838818817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45070402.

The product of its digits is 49545216, while the sum is 67.

The spelling of 2229838818817 in words is "two trillion, two hundred twenty-nine billion, eight hundred thirty-eight million, eight hundred eighteen thousand, eight hundred seventeen".