2680741448821 has 2 divisors, whose sum is σ = 2680741448822. Its totient is φ = 2680741448820.

The previous prime is 2680741448809. The next prime is 2680741448863. The reversal of 2680741448821 is 1288441470862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1667016676900 + 1013724771921 = 1291130^2 + 1006839^2 .

It is a cyclic number.

It is not a de Polignac number, because 2680741448821 - 2²¹ = 2680739351669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2680741448881) 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, 1340370724410 + 1340370724411.

It is an arithmetic number, because the mean of its divisors is an integer number (1340370724411).

Almost surely, 2^{2680741448821} is an apocalyptic number.

It is an amenable number.

2680741448821 is a deficient number, since it is larger than the sum of its proper divisors (1).

2680741448821 is an equidigital number, since it uses as much as digits as its factorization.

2680741448821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5505024, while the sum is 55.

The spelling of 2680741448821 in words is "two trillion, six hundred eighty billion, seven hundred forty-one million, four hundred forty-eight thousand, eight hundred twenty-one".