834394345289 has 2 divisors, whose sum is σ = 834394345290. Its totient is φ = 834394345288.

The previous prime is 834394345261. The next prime is 834394345333. The reversal of 834394345289 is 982543493438.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 832670850064 + 1723495225 = 912508^2 + 41515^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-834394345289 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (834394305289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 417197172644 + 417197172645.

It is an arithmetic number, because the mean of its divisors is an integer number (417197172645).

Almost surely, 2^834394345289 is an apocalyptic number.

It is an amenable number.

834394345289 is a deficient number, since it is larger than the sum of its proper divisors (1).

834394345289 is an equidigital number, since it uses as much as digits as its factorization.

834394345289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 89579520, while the sum is 62.

The spelling of 834394345289 in words is "eight hundred thirty-four billion, three hundred ninety-four million, three hundred forty-five thousand, two hundred eighty-nine".