8449211791 has 2 divisors, whose sum is σ = 8449211792. Its totient is φ = 8449211790.

The previous prime is 8449211723. The next prime is 8449211833. The reversal of 8449211791 is 1971129448.

8449211791 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8449211791 - 2¹³ = 8449203599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8449211891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4224605895 + 4224605896.

It is an arithmetic number, because the mean of its divisors is an integer number (4224605896).

Almost surely, 2^8449211791 is an apocalyptic number.

8449211791 is a deficient number, since it is larger than the sum of its proper divisors (1).

8449211791 is an equidigital number, since it uses as much as digits as its factorization.

8449211791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 46.

The square root of 8449211791 is about 91919.5941625070. The cubic root of 8449211791 is about 2036.7547233787.

The spelling of 8449211791 in words is "eight billion, four hundred forty-nine million, two hundred eleven thousand, seven hundred ninety-one".