1721411734013 has 2 divisors, whose sum is σ = 1721411734014. Its totient is φ = 1721411734012.

The previous prime is 1721411733997. The next prime is 1721411734037. The reversal of 1721411734013 is 3104371141271.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1562432500729 + 158979233284 = 1249973^2 + 398722^2 .

It is a cyclic number.

It is not a de Polignac number, because 1721411734013 - 2⁴ = 1721411733997 is a prime.

It is a super-2 number, since 2×1721411734013² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1721411734043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 860705867006 + 860705867007.

It is an arithmetic number, because the mean of its divisors is an integer number (860705867007).

Almost surely, 2^{1721411734013} is an apocalyptic number.

It is an amenable number.

1721411734013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1721411734013 is an equidigital number, since it uses as much as digits as its factorization.

1721411734013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 35.

Adding to 1721411734013 its reverse (3104371141271), we get a palindrome (4825782875284).

The spelling of 1721411734013 in words is "one trillion, seven hundred twenty-one billion, four hundred eleven million, seven hundred thirty-four thousand, thirteen".