2064881680193 has 2 divisors, whose sum is σ = 2064881680194. Its totient is φ = 2064881680192.

The previous prime is 2064881680187. The next prime is 2064881680201. The reversal of 2064881680193 is 3910861884602.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2003108057344 + 61773622849 = 1415312^2 + 248543^2 .

It is a cyclic number.

It is not a de Polignac number, because 2064881680193 - 2³⁰ = 2063807938369 is a prime.

It is a super-3 number, since 3×2064881680193³ (a number of 38 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2064881680133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1032440840096 + 1032440840097.

It is an arithmetic number, because the mean of its divisors is an integer number (1032440840097).

Almost surely, 2^{2064881680193} is an apocalyptic number.

It is an amenable number.

2064881680193 is a deficient number, since it is larger than the sum of its proper divisors (1).

2064881680193 is an equidigital number, since it uses as much as digits as its factorization.

2064881680193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3981312, while the sum is 56.

The spelling of 2064881680193 in words is "two trillion, sixty-four billion, eight hundred eighty-one million, six hundred eighty thousand, one hundred ninety-three".