11915318669 has 2 divisors, whose sum is σ = 11915318670. Its totient is φ = 11915318668.

The previous prime is 11915318651. The next prime is 11915318671. The reversal of 11915318669 is 96681351911.

11915318669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10032626569 + 1882692100 = 100163^2 + 43390^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11915318669 is a prime.

It is a super-2 number, since 2×11915318669² (a number of 21 digits) contains 22 as substring.

Together with 11915318671, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11915318869) 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, 5957659334 + 5957659335.

It is an arithmetic number, because the mean of its divisors is an integer number (5957659335).

Almost surely, 2^11915318669 is an apocalyptic number.

It is an amenable number.

11915318669 is a deficient number, since it is larger than the sum of its proper divisors (1).

11915318669 is an equidigital number, since it uses as much as digits as its factorization.

11915318669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 349920, while the sum is 50.

The spelling of 11915318669 in words is "eleven billion, nine hundred fifteen million, three hundred eighteen thousand, six hundred sixty-nine".