34543434209 has 2 divisors, whose sum is σ = 34543434210. Its totient is φ = 34543434208.

The previous prime is 34543434179. The next prime is 34543434259. The reversal of 34543434209 is 90243434543.

34543434209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30309069025 + 4234365184 = 174095^2 + 65072^2 .

It is an emirp because it is prime and its reverse (90243434543) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34543434209 - 2²⁴ = 34526656993 is a prime.

It is a super-2 number, since 2×34543434209² (a number of 22 digits) contains 22 as substring.

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 (34543434259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17271717104 + 17271717105.

It is an arithmetic number, because the mean of its divisors is an integer number (17271717105).

Almost surely, 2^34543434209 is an apocalyptic number.

It is an amenable number.

34543434209 is a deficient number, since it is larger than the sum of its proper divisors (1).

34543434209 is an equidigital number, since it uses as much as digits as its factorization.

34543434209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 622080, while the sum is 41.

The spelling of 34543434209 in words is "thirty-four billion, five hundred forty-three million, four hundred thirty-four thousand, two hundred nine".