6911308813 has 2 divisors, whose sum is σ = 6911308814. Its totient is φ = 6911308812.

The previous prime is 6911308771. The next prime is 6911308819. The reversal of 6911308813 is 3188031196.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5417254404 + 1494054409 = 73602^2 + 38653^2 .

It is a cyclic number.

It is not a de Polignac number, because 6911308813 - 2²⁵ = 6877754381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6911308819) 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, 3455654406 + 3455654407.

It is an arithmetic number, because the mean of its divisors is an integer number (3455654407).

Almost surely, 2^6911308813 is an apocalyptic number.

It is an amenable number.

6911308813 is a deficient number, since it is larger than the sum of its proper divisors (1).

6911308813 is an equidigital number, since it uses as much as digits as its factorization.

6911308813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 6911308813 is about 83134.2818156265. The cubic root of 6911308813 is about 1904.8177653974.

The spelling of 6911308813 in words is "six billion, nine hundred eleven million, three hundred eight thousand, eight hundred thirteen".