2064197771 has 2 divisors, whose sum is σ = 2064197772. Its totient is φ = 2064197770.

The previous prime is 2064197743. The next prime is 2064197801. The reversal of 2064197771 is 1777914602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2064197771 - 2¹⁰ = 2064196747 is a prime.

It is not a weakly prime, because it can be changed into another prime (2064197741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1032098885 + 1032098886.

It is an arithmetic number, because the mean of its divisors is an integer number (1032098886).

Almost surely, 2^2064197771 is an apocalyptic number.

2064197771 is a deficient number, since it is larger than the sum of its proper divisors (1).

2064197771 is an equidigital number, since it uses as much as digits as its factorization.

2064197771 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 148176, while the sum is 44.

The square root of 2064197771 is about 45433.4433099672. The cubic root of 2064197771 is about 1273.2600171064.

The spelling of 2064197771 in words is "two billion, sixty-four million, one hundred ninety-seven thousand, seven hundred seventy-one".