2182681348481 has 2 divisors, whose sum is σ = 2182681348482. Its totient is φ = 2182681348480.

The previous prime is 2182681348469. The next prime is 2182681348513. The reversal of 2182681348481 is 1848431862812.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1470117450256 + 712563898225 = 1212484^2 + 844135^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2182681348481 is a prime.

It is a super-2 number, since 2×2182681348481² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2182681348451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1091340674240 + 1091340674241.

It is an arithmetic number, because the mean of its divisors is an integer number (1091340674241).

Almost surely, 2^{2182681348481} is an apocalyptic number.

It is an amenable number.

2182681348481 is a deficient number, since it is larger than the sum of its proper divisors (1).

2182681348481 is an equidigital number, since it uses as much as digits as its factorization.

2182681348481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4718592, while the sum is 56.

The spelling of 2182681348481 in words is "two trillion, one hundred eighty-two billion, six hundred eighty-one million, three hundred forty-eight thousand, four hundred eighty-one".