2765365065 has 12 divisors (see below), whose sum is σ = 4793299524. Its totient is φ = 1474861344.

The previous prime is 2765365063. The next prime is 2765365069. The reversal of 2765365065 is 5605635672.

2765365065 is a `hidden beast` number, since 2 + 7 + 6 + 536 + 50 + 65 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 302029641 + 2463335424 = 17379^2 + 49632^2 .

It is not a de Polignac number, because 2765365065 - 2¹ = 2765365063 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 61452557 = 2765365065 / (2 + 7 + 6 + 5 + 3 + 6 + 5 + 0 + 6 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 2765365065.

It is not an unprimeable number, because it can be changed into a prime (2765365063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30726234 + ... + 30726323.

It is an arithmetic number, because the mean of its divisors is an integer number (399441627).

Almost surely, 2^2765365065 is an apocalyptic number.

It is an amenable number.

2765365065 is a deficient number, since it is larger than the sum of its proper divisors (2027934459).

2765365065 is a wasteful number, since it uses less digits than its factorization.

2765365065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61452568 (or 61452565 counting only the distinct ones).

The product of its (nonzero) digits is 1134000, while the sum is 45.

The square root of 2765365065 is about 52586.7384898512. The cubic root of 2765365065 is about 1403.6241247319.

The spelling of 2765365065 in words is "two billion, seven hundred sixty-five million, three hundred sixty-five thousand, sixty-five".