809164234343 has 2 divisors, whose sum is σ = 809164234344. Its totient is φ = 809164234342.

The previous prime is 809164234303. The next prime is 809164234367. The reversal of 809164234343 is 343432461908.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 809164234343 - 2⁶ = 809164234279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (809164234303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404582117171 + 404582117172.

It is an arithmetic number, because the mean of its divisors is an integer number (404582117172).

Almost surely, 2^809164234343 is an apocalyptic number.

809164234343 is a deficient number, since it is larger than the sum of its proper divisors (1).

809164234343 is an equidigital number, since it uses as much as digits as its factorization.

809164234343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1492992, while the sum is 47.

The spelling of 809164234343 in words is "eight hundred nine billion, one hundred sixty-four million, two hundred thirty-four thousand, three hundred forty-three".