6816007481 has 2 divisors, whose sum is σ = 6816007482. Its totient is φ = 6816007480.

The previous prime is 6816007463. The next prime is 6816007571. The reversal of 6816007481 is 1847006186.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4162830400 + 2653177081 = 64520^2 + 51509^2 .

It is a cyclic number.

It is not a de Polignac number, because 6816007481 - 2¹⁸ = 6815745337 is a prime.

It is a super-2 number, since 2×6816007481² = 92915915962095930722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6816007441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3408003740 + 3408003741.

It is an arithmetic number, because the mean of its divisors is an integer number (3408003741).

Almost surely, 2^6816007481 is an apocalyptic number.

It is an amenable number.

6816007481 is a deficient number, since it is larger than the sum of its proper divisors (1).

6816007481 is an equidigital number, since it uses as much as digits as its factorization.

6816007481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 6816007481 is about 82559.1150691430. The cubic root of 6816007481 is about 1896.0219151011.

The spelling of 6816007481 in words is "six billion, eight hundred sixteen million, seven thousand, four hundred eighty-one".