11528242587 has 12 divisors (see below), whose sum is σ = 16852532424. Its totient is φ = 7592898240.

The previous prime is 11528242573. The next prime is 11528242591. The reversal of 11528242587 is 78524282511.

11528242587 is a `hidden beast` number, since 1 + 1 + 5 + 28 + 2 + 42 + 587 = 666.

11528242587 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11528242587 - 2¹¹ = 11528240539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11528242567) 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 11 ways as a sum of consecutive naturals, for example, 7715614 + ... + 7717107.

It is an arithmetic number, because the mean of its divisors is an integer number (1404377702).

Almost surely, 2^11528242587 is an apocalyptic number.

11528242587 is a deficient number, since it is larger than the sum of its proper divisors (5324289837).

11528242587 is a wasteful number, since it uses less digits than its factorization.

11528242587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15432810 (or 15432807 counting only the distinct ones).

The product of its digits is 358400, while the sum is 45.

The spelling of 11528242587 in words is "eleven billion, five hundred twenty-eight million, two hundred forty-two thousand, five hundred eighty-seven".