764163868 has 24 divisors (see below), whose sum is σ = 1502772768. Its totient is φ = 337356096.

The previous prime is 764163853. The next prime is 764163887. The reversal of 764163868 is 868361467.

764163868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 318271 + ... + 320662.

It is an arithmetic number, because the mean of its divisors is an integer number (62615532).

Almost surely, 2^764163868 is an apocalyptic number.

It is an amenable number.

764163868 is a deficient number, since it is larger than the sum of its proper divisors (738608900).

764163868 is a wasteful number, since it uses less digits than its factorization.

764163868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638973 (or 638971 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 49.

The square root of 764163868 is about 27643.5140313239. The cubic root of 764163868 is about 914.2441000451.

The spelling of 764163868 in words is "seven hundred sixty-four million, one hundred sixty-three thousand, eight hundred sixty-eight".