11549716369 has 2 divisors, whose sum is σ = 11549716370. Its totient is φ = 11549716368.

The previous prime is 11549716361. The next prime is 11549716397. The reversal of 11549716369 is 96361794511.

11549716369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9167105025 + 2382611344 = 95745^2 + 48812^2 .

It is a cyclic number.

It is not a de Polignac number, because 11549716369 - 2³ = 11549716361 is a prime.

It is a super-2 number, since 2×11549716369² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11549716361) 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, 5774858184 + 5774858185.

It is an arithmetic number, because the mean of its divisors is an integer number (5774858185).

Almost surely, 2^11549716369 is an apocalyptic number.

It is an amenable number.

11549716369 is a deficient number, since it is larger than the sum of its proper divisors (1).

11549716369 is an equidigital number, since it uses as much as digits as its factorization.

11549716369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1224720, while the sum is 52.

The spelling of 11549716369 in words is "eleven billion, five hundred forty-nine million, seven hundred sixteen thousand, three hundred sixty-nine".