868404840682 has 8 divisors (see below), whose sum is σ = 1327184756676. Its totient is φ = 426009921792.

The previous prime is 868404840671. The next prime is 868404840707. The reversal of 868404840682 is 286048404868.

It can be written as a sum of positive squares in 2 ways, for example, as 705262360401 + 163142480281 = 839799^2 + 403909^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4096249143 + ... + 4096249354.

Almost surely, 2^868404840682 is an apocalyptic number.

868404840682 is a deficient number, since it is larger than the sum of its proper divisors (458779915994).

868404840682 is a wasteful number, since it uses less digits than its factorization.

868404840682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8192498552.

The product of its (nonzero) digits is 18874368, while the sum is 58.

The spelling of 868404840682 in words is "eight hundred sixty-eight billion, four hundred four million, eight hundred forty thousand, six hundred eighty-two".