9090914145569 has 2 divisors, whose sum is σ = 9090914145570. Its totient is φ = 9090914145568.

The previous prime is 9090914145541. The next prime is 9090914145601. The reversal of 9090914145569 is 9655414190909.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6928582128400 + 2162332017169 = 2632220^2 + 1470487^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9090914145569 is a prime.

It is a super-2 number, since 2×9090914145569² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9090914165569) 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, 4545457072784 + 4545457072785.

It is an arithmetic number, because the mean of its divisors is an integer number (4545457072785).

Almost surely, 2^{9090914145569} is an apocalyptic number.

It is an amenable number.

9090914145569 is a deficient number, since it is larger than the sum of its proper divisors (1).

9090914145569 is an equidigital number, since it uses as much as digits as its factorization.

9090914145569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15746400, while the sum is 62.

The spelling of 9090914145569 in words is "nine trillion, ninety billion, nine hundred fourteen million, one hundred forty-five thousand, five hundred sixty-nine".