11959488836 has 24 divisors (see below), whose sum is σ = 21547420440. Its totient is φ = 5803875072.

The previous prime is 11959488817. The next prime is 11959488857. The reversal of 11959488836 is 63888495911.

It can be written as a sum of positive squares in 4 ways, for example, as 9971220736 + 1988268100 = 99856^2 + 44590^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38255 + ... + 159318.

It is an arithmetic number, because the mean of its divisors is an integer number (897809185).

Almost surely, 2^11959488836 is an apocalyptic number.

It is an amenable number.

11959488836 is a deficient number, since it is larger than the sum of its proper divisors (9587931604).

11959488836 is a wasteful number, since it uses less digits than its factorization.

11959488836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198023 (or 198021 counting only the distinct ones).

The product of its digits is 14929920, while the sum is 62.

The spelling of 11959488836 in words is "eleven billion, nine hundred fifty-nine million, four hundred eighty-eight thousand, eight hundred thirty-six".