11328878889 has 8 divisors (see below), whose sum is σ = 16783524320. Its totient is φ = 7552585908.

The previous prime is 11328878881. The next prime is 11328878909. The reversal of 11328878889 is 98887882311.

It is not a de Polignac number, because 11328878889 - 2³ = 11328878881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11328878881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209794027 + ... + 209794080.

It is an arithmetic number, because the mean of its divisors is an integer number (2097940540).

Almost surely, 2^11328878889 is an apocalyptic number.

It is an amenable number.

11328878889 is a deficient number, since it is larger than the sum of its proper divisors (5454645431).

11328878889 is an equidigital number, since it uses as much as digits as its factorization.

11328878889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419588116 (or 419588110 counting only the distinct ones).

The product of its digits is 12386304, while the sum is 63.

The spelling of 11328878889 in words is "eleven billion, three hundred twenty-eight million, eight hundred seventy-eight thousand, eight hundred eighty-nine".