2681490296813 has 2 divisors, whose sum is σ = 2681490296814. Its totient is φ = 2681490296812.

The previous prime is 2681490296767. The next prime is 2681490296827. The reversal of 2681490296813 is 3186920941862.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2448793079044 + 232697217769 = 1564862^2 + 482387^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2681490296813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2681490296843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1340745148406 + 1340745148407.

It is an arithmetic number, because the mean of its divisors is an integer number (1340745148407).

Almost surely, 2^{2681490296813} is an apocalyptic number.

It is an amenable number.

2681490296813 is a deficient number, since it is larger than the sum of its proper divisors (1).

2681490296813 is an equidigital number, since it uses as much as digits as its factorization.

2681490296813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8957952, while the sum is 59.

The spelling of 2681490296813 in words is "two trillion, six hundred eighty-one billion, four hundred ninety million, two hundred ninety-six thousand, eight hundred thirteen".