80834482909 has 2 divisors, whose sum is σ = 80834482910. Its totient is φ = 80834482908.

The previous prime is 80834482907. The next prime is 80834482931. The reversal of 80834482909 is 90928443808.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54476960409 + 26357522500 = 233403^2 + 162350^2 .

It is a cyclic number.

It is not a de Polignac number, because 80834482909 - 2¹ = 80834482907 is a prime.

Together with 80834482907, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 80834482909.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80834482901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40417241454 + 40417241455.

It is an arithmetic number, because the mean of its divisors is an integer number (40417241455).

Almost surely, 2^80834482909 is an apocalyptic number.

It is an amenable number.

80834482909 is a deficient number, since it is larger than the sum of its proper divisors (1).

80834482909 is an equidigital number, since it uses as much as digits as its factorization.

80834482909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3981312, while the sum is 55.

The spelling of 80834482909 in words is "eighty billion, eight hundred thirty-four million, four hundred eighty-two thousand, nine hundred nine".