2646680713 has 4 divisors (see below), whose sum is σ = 2647003140. Its totient is φ = 2646358288.

The previous prime is 2646680711. The next prime is 2646680719. The reversal of 2646680713 is 3170866462.

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 1180403449 + 1466277264 = 34357^2 + 38292^2 .

It is a cyclic number.

It is not a de Polignac number, because 2646680713 - 2¹ = 2646680711 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 2646680713.

It is not an unprimeable number, because it can be changed into a prime (2646680711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148570 + ... + 165427.

It is an arithmetic number, because the mean of its divisors is an integer number (661750785).

Almost surely, 2^2646680713 is an apocalyptic number.

It is an amenable number.

2646680713 is a deficient number, since it is larger than the sum of its proper divisors (322427).

2646680713 is an equidigital number, since it uses as much as digits as its factorization.

2646680713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322426.

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 2646680713 is about 51445.9008376761. The cubic root of 2646680713 is about 1383.2494860616.

The spelling of 2646680713 in words is "two billion, six hundred forty-six million, six hundred eighty thousand, seven hundred thirteen".