8091085447399 has 2 divisors, whose sum is σ = 8091085447400. Its totient is φ = 8091085447398.

The previous prime is 8091085447391. The next prime is 8091085447433. The reversal of 8091085447399 is 9937445801908.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8091085447399 - 2³ = 8091085447391 is a prime.

It is a super-2 number, since 2×8091085447399² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8091085447391) 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, 4045542723699 + 4045542723700.

It is an arithmetic number, because the mean of its divisors is an integer number (4045542723700).

Almost surely, 2^{8091085447399} is an apocalyptic number.

8091085447399 is a deficient number, since it is larger than the sum of its proper divisors (1).

8091085447399 is an equidigital number, since it uses as much as digits as its factorization.

8091085447399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 78382080, while the sum is 67.

The spelling of 8091085447399 in words is "eight trillion, ninety-one billion, eighty-five million, four hundred forty-seven thousand, three hundred ninety-nine".