11639534885 has 16 divisors (see below), whose sum is σ = 15394300992. Its totient is φ = 8377843200.

The previous prime is 11639534839. The next prime is 11639534911. The reversal of 11639534885 is 58843593611.

It is a happy number.

11639534885 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 11639534885 - 2⁶ = 11639534821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1085531 + ... + 1096200.

It is an arithmetic number, because the mean of its divisors is an integer number (962143812).

Almost surely, 2^11639534885 is an apocalyptic number.

It is an amenable number.

11639534885 is a deficient number, since it is larger than the sum of its proper divisors (3754766107).

11639534885 is a wasteful number, since it uses less digits than its factorization.

11639534885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2181844.

The product of its digits is 3110400, while the sum is 53.

The spelling of 11639534885 in words is "eleven billion, six hundred thirty-nine million, five hundred thirty-four thousand, eight hundred eighty-five".