768456654866 has 16 divisors (see below), whose sum is σ = 1163975102784. Its totient is φ = 380465588784.

The previous prime is 768456654821. The next prime is 768456654899. The reversal of 768456654866 is 668456654867.

It is a self number, because there is not a number n which added to its sum of digits gives 768456654866.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2366216 + ... + 2671308.

It is an arithmetic number, because the mean of its divisors is an integer number (72748443924).

Almost surely, 2^768456654866 is an apocalyptic number.

768456654866 is a deficient number, since it is larger than the sum of its proper divisors (395518447918).

768456654866 is a wasteful number, since it uses less digits than its factorization.

768456654866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317425.

The product of its digits is 1393459200, while the sum is 71.

Subtracting from 768456654866 its reverse (668456654867), we obtain a palindrome (99999999999).

The spelling of 768456654866 in words is "seven hundred sixty-eight billion, four hundred fifty-six million, six hundred fifty-four thousand, eight hundred sixty-six".