11871393256 has 16 divisors (see below), whose sum is σ = 22678841700. Its totient is φ = 5823702144.

The previous prime is 11871393221. The next prime is 11871393263. The reversal of 11871393256 is 65239317811.

It is a happy number.

11871393256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11011144356 + 860248900 = 104934^2 + 29330^2 .

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 3 ways as a sum of consecutive naturals, for example, 13998861 + ... + 13999708.

Almost surely, 2^11871393256 is an apocalyptic number.

It is an amenable number.

11871393256 is a deficient number, since it is larger than the sum of its proper divisors (10807448444).

11871393256 is a wasteful number, since it uses less digits than its factorization.

11871393256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27998628 (or 27998624 counting only the distinct ones).

The product of its digits is 272160, while the sum is 46.

The spelling of 11871393256 in words is "eleven billion, eight hundred seventy-one million, three hundred ninety-three thousand, two hundred fifty-six".