6211456340917 has 2 divisors, whose sum is σ = 6211456340918. Its totient is φ = 6211456340916.

The previous prime is 6211456340899. The next prime is 6211456341023. The reversal of 6211456340917 is 7190436541126.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4981783824081 + 1229672516836 = 2231991^2 + 1108906^2 .

It is a cyclic number.

It is not a de Polignac number, because 6211456340917 - 2²³ = 6211447952309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6211456340017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3105728170458 + 3105728170459.

It is an arithmetic number, because the mean of its divisors is an integer number (3105728170459).

Almost surely, 2^{6211456340917} is an apocalyptic number.

It is an amenable number.

6211456340917 is a deficient number, since it is larger than the sum of its proper divisors (1).

6211456340917 is an equidigital number, since it uses as much as digits as its factorization.

6211456340917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 6211456340917 in words is "six trillion, two hundred eleven billion, four hundred fifty-six million, three hundred forty thousand, nine hundred seventeen".