11109898428 has 12 divisors (see below), whose sum is σ = 25923096360. Its totient is φ = 3703299472.

The previous prime is 11109898421. The next prime is 11109898447. The reversal of 11109898428 is 82489890111.

11109898428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11109898421) 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 in 3 ways as a sum of consecutive naturals, for example, 462912423 + ... + 462912446.

It is an arithmetic number, because the mean of its divisors is an integer number (2160258030).

Almost surely, 2^11109898428 is an apocalyptic number.

It is an amenable number.

11109898428 is an abundant number, since it is smaller than the sum of its proper divisors (14813197932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11109898428 is a wasteful number, since it uses less digits than its factorization.

11109898428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925824876 (or 925824874 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 51.

The spelling of 11109898428 in words is "eleven billion, one hundred nine million, eight hundred ninety-eight thousand, four hundred twenty-eight".