2685160813 has 2 divisors, whose sum is σ = 2685160814. Its totient is φ = 2685160812.

The previous prime is 2685160811. The next prime is 2685160847. The reversal of 2685160813 is 3180615862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2057257449 + 627903364 = 45357^2 + 25058^2 .

It is a cyclic number.

It is not a de Polignac number, because 2685160813 - 2¹ = 2685160811 is a prime.

Together with 2685160811, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2685160811) 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 as a sum of consecutive naturals, namely, 1342580406 + 1342580407.

It is an arithmetic number, because the mean of its divisors is an integer number (1342580407).

Almost surely, 2^2685160813 is an apocalyptic number.

It is an amenable number.

2685160813 is a deficient number, since it is larger than the sum of its proper divisors (1).

2685160813 is an equidigital number, since it uses as much as digits as its factorization.

2685160813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 2685160813 is about 51818.5373490993. The cubic root of 2685160813 is about 1389.9209473183.

The spelling of 2685160813 in words is "two billion, six hundred eighty-five million, one hundred sixty thousand, eight hundred thirteen".