11129562889 has 4 divisors (see below), whose sum is σ = 11430361924. Its totient is φ = 10828763856.

The previous prime is 11129562883. The next prime is 11129562931. The reversal of 11129562889 is 98826592111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4686771600 + 6442791289 = 68460^2 + 80267^2 .

It is a cyclic number.

It is not a de Polignac number, because 11129562889 - 2⁷ = 11129562761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11129562883) 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 in 3 ways as a sum of consecutive naturals, for example, 150399462 + ... + 150399535.

It is an arithmetic number, because the mean of its divisors is an integer number (2857590481).

Almost surely, 2^11129562889 is an apocalyptic number.

It is an amenable number.

11129562889 is a deficient number, since it is larger than the sum of its proper divisors (300799035).

11129562889 is an equidigital number, since it uses as much as digits as its factorization.

11129562889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300799034.

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

The spelling of 11129562889 in words is "eleven billion, one hundred twenty-nine million, five hundred sixty-two thousand, eight hundred eighty-nine".