11268894569 has 2 divisors, whose sum is σ = 11268894570. Its totient is φ = 11268894568.

The previous prime is 11268894473. The next prime is 11268894629. The reversal of 11268894569 is 96549886211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9952656169 + 1316238400 = 99763^2 + 36280^2 .

It is a cyclic number.

It is not a de Polignac number, because 11268894569 - 2³² = 6973927273 is a prime.

It is a super-2 number, since 2×11268894569² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11261894569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5634447284 + 5634447285.

It is an arithmetic number, because the mean of its divisors is an integer number (5634447285).

Almost surely, 2^11268894569 is an apocalyptic number.

It is an amenable number.

11268894569 is a deficient number, since it is larger than the sum of its proper divisors (1).

11268894569 is an equidigital number, since it uses as much as digits as its factorization.

11268894569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7464960, while the sum is 59.

The spelling of 11268894569 in words is "eleven billion, two hundred sixty-eight million, eight hundred ninety-four thousand, five hundred sixty-nine".