768454864 has 20 divisors (see below), whose sum is σ = 1503625860. Its totient is φ = 380422400.

The previous prime is 768454853. The next prime is 768454871. The reversal of 768454864 is 468454867.

768454864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 471237264 + 297217600 = 21708^2 + 17240^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 236149 + ... + 239380.

It is an arithmetic number, because the mean of its divisors is an integer number (75181293).

Almost surely, 2^768454864 is an apocalyptic number.

It is an amenable number.

768454864 is a deficient number, since it is larger than the sum of its proper divisors (735170996).

768454864 is a wasteful number, since it uses less digits than its factorization.

768454864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475638 (or 475632 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 52.

The square root of 768454864 is about 27721.0184517092. The cubic root of 768454864 is about 915.9521532568.

The spelling of 768454864 in words is "seven hundred sixty-eight million, four hundred fifty-four thousand, eight hundred sixty-four".