3444081367721 has 2 divisors, whose sum is σ = 3444081367722. Its totient is φ = 3444081367720.

The previous prime is 3444081367691. The next prime is 3444081367757. The reversal of 3444081367721 is 1277631804443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3343759674025 + 100321693696 = 1828595^2 + 316736^2 .

It is an emirp because it is prime and its reverse (1277631804443) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3444081367721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3444081367721.

It is not a weakly prime, because it can be changed into another prime (3444081367121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1722040683860 + 1722040683861.

It is an arithmetic number, because the mean of its divisors is an integer number (1722040683861).

Almost surely, 2^{3444081367721} is an apocalyptic number.

It is an amenable number.

3444081367721 is a deficient number, since it is larger than the sum of its proper divisors (1).

3444081367721 is an equidigital number, since it uses as much as digits as its factorization.

3444081367721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2709504, while the sum is 50.

The spelling of 3444081367721 in words is "three trillion, four hundred forty-four billion, eighty-one million, three hundred sixty-seven thousand, seven hundred twenty-one".