6461442316213 has 2 divisors, whose sum is σ = 6461442316214. Its totient is φ = 6461442316212.

The previous prime is 6461442316187. The next prime is 6461442316223. The reversal of 6461442316213 is 3126132441646.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6428871812484 + 32570503729 = 2535522^2 + 180473^2 .

It is a cyclic number.

It is not a de Polignac number, because 6461442316213 - 2³⁷ = 6324003362741 is a prime.

It is a super-2 number, since 2×6461442316213² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6461442316213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6461442316223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3230721158106 + 3230721158107.

It is an arithmetic number, because the mean of its divisors is an integer number (3230721158107).

Almost surely, 2^{6461442316213} is an apocalyptic number.

It is an amenable number.

6461442316213 is a deficient number, since it is larger than the sum of its proper divisors (1).

6461442316213 is an equidigital number, since it uses as much as digits as its factorization.

6461442316213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 497664, while the sum is 43.

Adding to 6461442316213 its reverse (3126132441646), we get a palindrome (9587574757859).

The spelling of 6461442316213 in words is "six trillion, four hundred sixty-one billion, four hundred forty-two million, three hundred sixteen thousand, two hundred thirteen".