2289968299849 has 4 divisors (see below), whose sum is σ = 2313576220564. Its totient is φ = 2266360379136.

The previous prime is 2289968299837. The next prime is 2289968299901. The reversal of 2289968299849 is 9489928699822.

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 486426738249 + 1803541561600 = 697443^2 + 1342960^2 .

It is a cyclic number.

It is not a de Polignac number, because 2289968299849 - 2²¹ = 2289966202697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2289968299249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11803960212 + ... + 11803960405.

It is an arithmetic number, because the mean of its divisors is an integer number (578394055141).

Almost surely, 2^{2289968299849} is an apocalyptic number.

It is an amenable number.

2289968299849 is a deficient number, since it is larger than the sum of its proper divisors (23607920715).

2289968299849 is an equidigital number, since it uses as much as digits as its factorization.

2289968299849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23607920714.

The product of its digits is 5804752896, while the sum is 85.

The spelling of 2289968299849 in words is "two trillion, two hundred eighty-nine billion, nine hundred sixty-eight million, two hundred ninety-nine thousand, eight hundred forty-nine".