868581711 has 20 divisors (see below), whose sum is σ = 1303685944. Its totient is φ = 576298800.

The previous prime is 868581691. The next prime is 868581733. The reversal of 868581711 is 117185868.

868581711 is a `hidden beast` number, since 8 + 68 + 581 + 7 + 1 + 1 = 666.

868581711 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 868581711 - 2⁷ = 868581583 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 (868581911) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8320 + ... + 42501.

Almost surely, 2^868581711 is an apocalyptic number.

868581711 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

868581711 is a deficient number, since it is larger than the sum of its proper divisors (435104233).

868581711 is a wasteful number, since it uses less digits than its factorization.

868581711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51044 (or 51035 counting only the distinct ones).

The product of its digits is 107520, while the sum is 45.

The square root of 868581711 is about 29471.7103507754. The cubic root of 868581711 is about 954.1212317752.

The spelling of 868581711 in words is "eight hundred sixty-eight million, five hundred eighty-one thousand, seven hundred eleven".