8109911207 has 2 divisors, whose sum is σ = 8109911208. Its totient is φ = 8109911206.

The previous prime is 8109911197. The next prime is 8109911213. The reversal of 8109911207 is 7021199018.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8109911207 - 2⁸ = 8109910951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8109911507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4054955603 + 4054955604.

It is an arithmetic number, because the mean of its divisors is an integer number (4054955604).

Almost surely, 2^8109911207 is an apocalyptic number.

8109911207 is a deficient number, since it is larger than the sum of its proper divisors (1).

8109911207 is an equidigital number, since it uses as much as digits as its factorization.

8109911207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 38.

The square root of 8109911207 is about 90055.0454277827. The cubic root of 8109911207 is about 2009.1176384214.

It can be divided in two parts, 8109911 and 207, that added together give a palindrome (8110118).

The spelling of 8109911207 in words is "eight billion, one hundred nine million, nine hundred eleven thousand, two hundred seven".