2289995437309 has 2 divisors, whose sum is σ = 2289995437310. Its totient is φ = 2289995437308.

The previous prime is 2289995437307. The next prime is 2289995437313. The reversal of 2289995437309 is 9037345999822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2287949684409 + 2045752900 = 1512597^2 + 45230^2 .

It is a cyclic number.

It is not a de Polignac number, because 2289995437309 - 2¹ = 2289995437307 is a prime.

It is a super-2 number, since 2×2289995437309² (a number of 26 digits) contains 22 as substring.

Together with 2289995437307, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2289995437307) 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 as a sum of consecutive naturals, namely, 1144997718654 + 1144997718655.

It is an arithmetic number, because the mean of its divisors is an integer number (1144997718655).

Almost surely, 2^{2289995437309} is an apocalyptic number.

It is an amenable number.

2289995437309 is a deficient number, since it is larger than the sum of its proper divisors (1).

2289995437309 is an equidigital number, since it uses as much as digits as its factorization.

2289995437309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 264539520, while the sum is 70.

The spelling of 2289995437309 in words is "two trillion, two hundred eighty-nine billion, nine hundred ninety-five million, four hundred thirty-seven thousand, three hundred nine".