834973122791 has 2 divisors, whose sum is σ = 834973122792. Its totient is φ = 834973122790.

The previous prime is 834973122787. The next prime is 834973122931. The reversal of 834973122791 is 197221379438.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 834973122791 - 2² = 834973122787 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (834973122761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 417486561395 + 417486561396.

It is an arithmetic number, because the mean of its divisors is an integer number (417486561396).

Almost surely, 2^834973122791 is an apocalyptic number.

834973122791 is a deficient number, since it is larger than the sum of its proper divisors (1).

834973122791 is an equidigital number, since it uses as much as digits as its factorization.

834973122791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4572288, while the sum is 56.

The spelling of 834973122791 in words is "eight hundred thirty-four billion, nine hundred seventy-three million, one hundred twenty-two thousand, seven hundred ninety-one".