765312868 has 12 divisors (see below), whose sum is σ = 1418079852. Its totient is φ = 360147200.

The previous prime is 765312829. The next prime is 765312887. The reversal of 765312868 is 868213567.

It can be written as a sum of positive squares in 2 ways, for example, as 494973504 + 270339364 = 22248^2 + 16442^2 .

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, 5627233 + ... + 5627368.

It is an arithmetic number, because the mean of its divisors is an integer number (118173321).

Almost surely, 2^765312868 is an apocalyptic number.

It is an amenable number.

765312868 is a deficient number, since it is larger than the sum of its proper divisors (652766984).

765312868 is a wasteful number, since it uses less digits than its factorization.

765312868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11254622 (or 11254620 counting only the distinct ones).

The product of its digits is 483840, while the sum is 46.

The square root of 765312868 is about 27664.2886769206. The cubic root of 765312868 is about 914.7020909984.

The spelling of 765312868 in words is "seven hundred sixty-five million, three hundred twelve thousand, eight hundred sixty-eight".