2785857713 has 2 divisors, whose sum is σ = 2785857714. Its totient is φ = 2785857712.

The previous prime is 2785857703. The next prime is 2785857721. The reversal of 2785857713 is 3177585872.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1847538289 + 938319424 = 42983^2 + 30632^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2785857713 is a prime.

It is a super-2 number, since 2×2785857713² = 15522006394163180738, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2785857703) 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, 1392928856 + 1392928857.

It is an arithmetic number, because the mean of its divisors is an integer number (1392928857).

Almost surely, 2^2785857713 is an apocalyptic number.

It is an amenable number.

2785857713 is a deficient number, since it is larger than the sum of its proper divisors (1).

2785857713 is an equidigital number, since it uses as much as digits as its factorization.

2785857713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3292800, while the sum is 53.

The square root of 2785857713 is about 52781.2250047306. The cubic root of 2785857713 is about 1407.0827656965.

The spelling of 2785857713 in words is "two billion, seven hundred eighty-five million, eight hundred fifty-seven thousand, seven hundred thirteen".