768722756 has 12 divisors (see below), whose sum is σ = 1349121900. Its totient is φ = 383259360.

The previous prime is 768722699. The next prime is 768722783. The reversal of 768722756 is 657227867.

768722756 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 438064900 + 330657856 = 20930^2 + 18184^2 .

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, 273935 + ... + 276726.

It is an arithmetic number, because the mean of its divisors is an integer number (112426825).

Almost surely, 2^768722756 is an apocalyptic number.

It is an amenable number.

768722756 is a deficient number, since it is larger than the sum of its proper divisors (580399144).

768722756 is a wasteful number, since it uses less digits than its factorization.

768722756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551014 (or 551012 counting only the distinct ones).

The product of its digits is 1975680, while the sum is 50.

The square root of 768722756 is about 27725.8499599201. The cubic root of 768722756 is about 916.0585779616.

The spelling of 768722756 in words is "seven hundred sixty-eight million, seven hundred twenty-two thousand, seven hundred fifty-six".