7271191041089 has 2 divisors, whose sum is σ = 7271191041090. Its totient is φ = 7271191041088.

The previous prime is 7271191041013. The next prime is 7271191041133. The reversal of 7271191041089 is 9801401911727.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4579514400400 + 2691676640689 = 2139980^2 + 1640633^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7271191041089 is a prime.

It is not a weakly prime, because it can be changed into another prime (7271191041889) 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, 3635595520544 + 3635595520545.

It is an arithmetic number, because the mean of its divisors is an integer number (3635595520545).

Almost surely, 2^{7271191041089} is an apocalyptic number.

It is an amenable number.

7271191041089 is a deficient number, since it is larger than the sum of its proper divisors (1).

7271191041089 is an equidigital number, since it uses as much as digits as its factorization.

7271191041089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 254016, while the sum is 50.

The spelling of 7271191041089 in words is "seven trillion, two hundred seventy-one billion, one hundred ninety-one million, forty-one thousand, eighty-nine".