868681862 has 16 divisors (see below), whose sum is σ = 1372634160. Its totient is φ = 411171552.

The previous prime is 868681859. The next prime is 868681897. The reversal of 868681862 is 268186868.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47348 + ... + 63080.

It is an arithmetic number, because the mean of its divisors is an integer number (85789635).

Almost surely, 2^868681862 is an apocalyptic number.

868681862 is a deficient number, since it is larger than the sum of its proper divisors (503952298).

868681862 is a wasteful number, since it uses less digits than its factorization.

868681862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17207.

The product of its digits is 1769472, while the sum is 53.

The square root of 868681862 is about 29473.4094057678. The cubic root of 868681862 is about 954.1579017173.

The spelling of 868681862 in words is "eight hundred sixty-eight million, six hundred eighty-one thousand, eight hundred sixty-two".