764077668 has 24 divisors (see below), whose sum is σ = 1786831200. Its totient is φ = 254123520.

The previous prime is 764077663. The next prime is 764077679. The reversal of 764077668 is 866770467.

764077668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 764077668.

It is not an unprimeable number, because it can be changed into a prime (764077663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65518 + ... + 76293.

It is an arithmetic number, because the mean of its divisors is an integer number (74451300).

Almost surely, 2^764077668 is an apocalyptic number.

It is an amenable number.

764077668 is an abundant number, since it is smaller than the sum of its proper divisors (1022753532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

764077668 is a wasteful number, since it uses less digits than its factorization.

764077668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142267 (or 142265 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 51.

The square root of 764077668 is about 27641.9548512763. The cubic root of 764077668 is about 914.2097222508.

The spelling of 764077668 in words is "seven hundred sixty-four million, seventy-seven thousand, six hundred sixty-eight".