11542587828 has 24 divisors (see below), whose sum is σ = 27440870688. Its totient is φ = 3774934176.

The previous prime is 11542587817. The next prime is 11542587841. The reversal of 11542587828 is 82878524511.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9073726 + ... + 9074997.

It is an arithmetic number, because the mean of its divisors is an integer number (1143369612).

Almost surely, 2^11542587828 is an apocalyptic number.

It is an amenable number.

11542587828 is an abundant number, since it is smaller than the sum of its proper divisors (15898282860).

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

11542587828 is a wasteful number, since it uses less digits than its factorization.

11542587828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18148783 (or 18148781 counting only the distinct ones).

The product of its digits is 1433600, while the sum is 51.

The spelling of 11542587828 in words is "eleven billion, five hundred forty-two million, five hundred eighty-seven thousand, eight hundred twenty-eight".