868676192784 has 135 divisors (see below), whose sum is σ = 2458592454279. Its totient is φ = 286319001600.

The previous prime is 868676192779. The next prime is 868676192821. The reversal of 868676192784 is 487291676868.

The square root of 868676192784 is 932028.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 182694695184 + 685981497600 = 427428^2 + 828240^2 .

It is a Harshad number since it is a multiple of its sum of digits (72).

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 26 ways as a sum of consecutive naturals, for example, 1129617552 + ... + 1129618320.

Almost surely, 2^868676192784 is an apocalyptic number.

868676192784 is the 932028-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 868676192784

868676192784 is an abundant number, since it is smaller than the sum of its proper divisors (1589916261495).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

868676192784 is an equidigital number, since it uses as much as digits as its factorization.

868676192784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1754 (or 875 counting only the distinct ones).

The product of its digits is 390168576, while the sum is 72.

The spelling of 868676192784 in words is "eight hundred sixty-eight billion, six hundred seventy-six million, one hundred ninety-two thousand, seven hundred eighty-four".