834394345261 has 2 divisors, whose sum is σ = 834394345262. Its totient is φ = 834394345260.

The previous prime is 834394345193. The next prime is 834394345289. The reversal of 834394345261 is 162543493438.

834394345261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 829567569636 + 4826775625 = 910806^2 + 69475^2 .

It is a cyclic number.

It is not a de Polignac number, because 834394345261 - 2²³ = 834385956653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 834394345199 and 834394345208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (834394355261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 417197172630 + 417197172631.

It is an arithmetic number, because the mean of its divisors is an integer number (417197172631).

Almost surely, 2^834394345261 is an apocalyptic number.

It is an amenable number.

834394345261 is a deficient number, since it is larger than the sum of its proper divisors (1).

834394345261 is an equidigital number, since it uses as much as digits as its factorization.

834394345261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7464960, while the sum is 52.

The spelling of 834394345261 in words is "eight hundred thirty-four billion, three hundred ninety-four million, three hundred forty-five thousand, two hundred sixty-one".