2705776765 has 4 divisors (see below), whose sum is σ = 3246932124. Its totient is φ = 2164621408.

The previous prime is 2705776753. The next prime is 2705776771. The reversal of 2705776765 is 5676775072.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2097365209 + 608411556 = 45797^2 + 24666^2 .

It is a cyclic number.

It is not a de Polignac number, because 2705776765 - 2¹⁹ = 2705252477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270577672 + ... + 270577681.

It is an arithmetic number, because the mean of its divisors is an integer number (811733031).

Almost surely, 2^2705776765 is an apocalyptic number.

It is an amenable number.

2705776765 is a deficient number, since it is larger than the sum of its proper divisors (541155359).

2705776765 is an equidigital number, since it uses as much as digits as its factorization.

2705776765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541155358.

The product of its (nonzero) digits is 4321800, while the sum is 52.

The square root of 2705776765 is about 52017.0814733007. The cubic root of 2705776765 is about 1393.4690303740.

The spelling of 2705776765 in words is "two billion, seven hundred five million, seven hundred seventy-six thousand, seven hundred sixty-five".