11128952689 has 2 divisors, whose sum is σ = 11128952690. Its totient is φ = 11128952688.

The previous prime is 11128952683. The next prime is 11128952699. The reversal of 11128952689 is 98625982111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11128562064 + 390625 = 105492^2 + 625^2 .

It is a cyclic number.

It is not a de Polignac number, because 11128952689 - 2¹⁷ = 11128821617 is a prime.

It is not a weakly prime, because it can be changed into another prime (11128952683) 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, 5564476344 + 5564476345.

It is an arithmetic number, because the mean of its divisors is an integer number (5564476345).

Almost surely, 2^11128952689 is an apocalyptic number.

It is an amenable number.

11128952689 is a deficient number, since it is larger than the sum of its proper divisors (1).

11128952689 is an equidigital number, since it uses as much as digits as its factorization.

11128952689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 52.

The spelling of 11128952689 in words is "eleven billion, one hundred twenty-eight million, nine hundred fifty-two thousand, six hundred eighty-nine".