11089542528 has 96 divisors (see below), whose sum is σ = 32013034560. Its totient is φ = 3684731904.

The previous prime is 11089542517. The next prime is 11089542559. The reversal of 11089542528 is 82524598011.

11089542528 is a `hidden beast` number, since 1 + 1 + 0 + 89 + 5 + 42 + 528 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 350001 + ... + 380367.

It is an arithmetic number, because the mean of its divisors is an integer number (333469110).

Almost surely, 2^11089542528 is an apocalyptic number.

11089542528 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11089542528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16006517280).

11089542528 is an abundant number, since it is smaller than the sum of its proper divisors (20923492032).

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

11089542528 is a wasteful number, since it uses less digits than its factorization.

11089542528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30704 (or 30689 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 45.

The spelling of 11089542528 in words is "eleven billion, eighty-nine million, five hundred forty-two thousand, five hundred twenty-eight".