6726446281 has 2 divisors, whose sum is σ = 6726446282. Its totient is φ = 6726446280.

The previous prime is 6726446273. The next prime is 6726446303. The reversal of 6726446281 is 1826446276.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6223789881 + 502656400 = 78891^2 + 22420^2 .

It is a cyclic number.

It is not a de Polignac number, because 6726446281 - 2³ = 6726446273 is a prime.

It is a super-2 number, since 2×6726446281² = 90490159142357461922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6726446261) 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, 3363223140 + 3363223141.

It is an arithmetic number, because the mean of its divisors is an integer number (3363223141).

Almost surely, 2^6726446281 is an apocalyptic number.

It is an amenable number.

6726446281 is a deficient number, since it is larger than the sum of its proper divisors (1).

6726446281 is an equidigital number, since it uses as much as digits as its factorization.

6726446281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 774144, while the sum is 46.

The square root of 6726446281 is about 82014.9149911161. The cubic root of 6726446281 is about 1887.6808036735.

The spelling of 6726446281 in words is "six billion, seven hundred twenty-six million, four hundred forty-six thousand, two hundred eighty-one".