765645068 has 24 divisors (see below), whose sum is σ = 1443240960. Its totient is φ = 354364560.

The previous prime is 765645061. The next prime is 765645079. The reversal of 765645068 is 860546567.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (765645061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131378 + ... + 137081.

It is an arithmetic number, because the mean of its divisors is an integer number (60135040).

Almost surely, 2^765645068 is an apocalyptic number.

It is an amenable number.

765645068 is a deficient number, since it is larger than the sum of its proper divisors (677595892).

765645068 is a wasteful number, since it uses less digits than its factorization.

765645068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268517 (or 268515 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 47.

The square root of 765645068 is about 27670.2921560290. The cubic root of 765645068 is about 914.8344203553.

The spelling of 765645068 in words is "seven hundred sixty-five million, six hundred forty-five thousand, sixty-eight".