11831724487 has 12 divisors (see below), whose sum is σ = 13133895768. Its totient is φ = 10649606000.

The previous prime is 11831724467. The next prime is 11831724511. The reversal of 11831724487 is 78442713811.

11831724487 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 11831724487 - 2¹¹ = 11831722439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11831724467) 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, 471853 + ... + 496294.

It is an arithmetic number, because the mean of its divisors is an integer number (1094491314).

Almost surely, 2^11831724487 is an apocalyptic number.

11831724487 is a deficient number, since it is larger than the sum of its proper divisors (1302171281).

11831724487 is a wasteful number, since it uses less digits than its factorization.

11831724487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968270 (or 968259 counting only the distinct ones).

The product of its digits is 301056, while the sum is 46.

The spelling of 11831724487 in words is "eleven billion, eight hundred thirty-one million, seven hundred twenty-four thousand, four hundred eighty-seven".