765564745 has 16 divisors (see below), whose sum is σ = 1004270400. Its totient is φ = 555620800.

The previous prime is 765564731. The next prime is 765564769. The reversal of 765564745 is 547465567.

765564745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 765564745 - 2¹¹ = 765562697 is a prime.

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, 12831 + ... + 41179.

It is an arithmetic number, because the mean of its divisors is an integer number (62766900).

Almost surely, 2^765564745 is an apocalyptic number.

It is an amenable number.

765564745 is a deficient number, since it is larger than the sum of its proper divisors (238705655).

765564745 is a wasteful number, since it uses less digits than its factorization.

765564745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28856.

The product of its digits is 3528000, while the sum is 49.

The square root of 765564745 is about 27668.8406876761. The cubic root of 765564745 is about 914.8024278051.

The spelling of 765564745 in words is "seven hundred sixty-five million, five hundred sixty-four thousand, seven hundred forty-five".