2600206813 has 2 divisors, whose sum is σ = 2600206814. Its totient is φ = 2600206812.

The previous prime is 2600206811. The next prime is 2600206841. The reversal of 2600206813 is 3186020062.

It is an a-pointer prime, because the next prime (2600206841) can be obtained adding 2600206813 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2099655684 + 500551129 = 45822^2 + 22373^2 .

It is a cyclic number.

It is not a de Polignac number, because 2600206813 - 2¹ = 2600206811 is a prime.

It is a super-2 number, since 2×2600206813² = 13522150940743233938, which contains 22 as substring.

Together with 2600206811, 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 (2600206811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1300103406 + 1300103407.

It is an arithmetic number, because the mean of its divisors is an integer number (1300103407).

Almost surely, 2^2600206813 is an apocalyptic number.

It is an amenable number.

2600206813 is a deficient number, since it is larger than the sum of its proper divisors (1).

2600206813 is an equidigital number, since it uses as much as digits as its factorization.

2600206813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 2600206813 is about 50992.2230639144. The cubic root of 2600206813 is about 1375.1053253533.

Adding to 2600206813 its reverse (3186020062), we get a palindrome (5786226875).

The spelling of 2600206813 in words is "two billion, six hundred million, two hundred six thousand, eight hundred thirteen".