2765756113 has 4 divisors (see below), whose sum is σ = 2771065188. Its totient is φ = 2760447040.

The previous prime is 2765756107. The next prime is 2765756143. The reversal of 2765756113 is 3116575672.

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 1451838609 + 1313917504 = 38103^2 + 36248^2 .

It is a cyclic number.

It is not a de Polignac number, because 2765756113 - 2¹³ = 2765747921 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2765756113.

It is not an unprimeable number, because it can be changed into a prime (2765756143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2653756 + ... + 2654797.

It is an arithmetic number, because the mean of its divisors is an integer number (692766297).

Almost surely, 2^2765756113 is an apocalyptic number.

It is an amenable number.

2765756113 is a deficient number, since it is larger than the sum of its proper divisors (5309075).

2765756113 is an equidigital number, since it uses as much as digits as its factorization.

2765756113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5309074.

The product of its digits is 264600, while the sum is 43.

The square root of 2765756113 is about 52590.4564821413. The cubic root of 2765756113 is about 1403.6902833913.

The spelling of 2765756113 in words is "two billion, seven hundred sixty-five million, seven hundred fifty-six thousand, one hundred thirteen".