765768745 has 16 divisors (see below), whose sum is σ = 1050663168. Its totient is φ = 524865600.

The previous prime is 765768737. The next prime is 765768763. The reversal of 765768745 is 547867567.

It is not a de Polignac number, because 765768745 - 2³ = 765768737 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121420 + ... + 127570.

It is an arithmetic number, because the mean of its divisors is an integer number (65666448).

Almost surely, 2^765768745 is an apocalyptic number.

It is an amenable number.

765768745 is a deficient number, since it is larger than the sum of its proper divisors (284894423).

765768745 is a wasteful number, since it uses less digits than its factorization.

765768745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9720.

The product of its digits is 9878400, while the sum is 55.

The square root of 765768745 is about 27672.5268994358. The cubic root of 765768745 is about 914.8836763747.

The spelling of 765768745 in words is "seven hundred sixty-five million, seven hundred sixty-eight thousand, seven hundred forty-five".