764144812 has 24 divisors (see below), whose sum is σ = 1424606400. Its totient is φ = 357599376.

The previous prime is 764144791. The next prime is 764144819. The reversal of 764144812 is 218441467.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (764144819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54262 + ... + 66877.

It is an arithmetic number, because the mean of its divisors is an integer number (59358600).

Almost surely, 2^764144812 is an apocalyptic number.

It is an amenable number.

764144812 is a deficient number, since it is larger than the sum of its proper divisors (660461588).

764144812 is a wasteful number, since it uses less digits than its factorization.

764144812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121245 (or 121243 counting only the distinct ones).

The product of its digits is 43008, while the sum is 37.

The square root of 764144812 is about 27643.1693551951. The cubic root of 764144812 is about 914.2365004620.

The spelling of 764144812 in words is "seven hundred sixty-four million, one hundred forty-four thousand, eight hundred twelve".