10871686856 has 32 divisors (see below), whose sum is σ = 21202663680. Its totient is φ = 5220321600.

The previous prime is 10871686853. The next prime is 10871686867. The reversal of 10871686856 is 65868617801.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (10871686853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134831 + ... + 199806.

It is an arithmetic number, because the mean of its divisors is an integer number (662583240).

Almost surely, 2^10871686856 is an apocalyptic number.

It is an amenable number.

10871686856 is a deficient number, since it is larger than the sum of its proper divisors (10330976824).

10871686856 is a wasteful number, since it uses less digits than its factorization.

10871686856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334805 (or 334801 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 56.

The spelling of 10871686856 in words is "ten billion, eight hundred seventy-one million, six hundred eighty-six thousand, eight hundred fifty-six".