2064568889 has 2 divisors, whose sum is σ = 2064568890. Its totient is φ = 2064568888.

The previous prime is 2064568879. The next prime is 2064568897. The reversal of 2064568889 is 9888654602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1900524025 + 164044864 = 43595^2 + 12808^2 .

It is a cyclic number.

It is not a de Polignac number, because 2064568889 - 2¹² = 2064564793 is a prime.

It is not a weakly prime, because it can be changed into another prime (2064568879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1032284444 + 1032284445.

It is an arithmetic number, because the mean of its divisors is an integer number (1032284445).

Almost surely, 2^2064568889 is an apocalyptic number.

It is an amenable number.

2064568889 is a deficient number, since it is larger than the sum of its proper divisors (1).

2064568889 is an equidigital number, since it uses as much as digits as its factorization.

2064568889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6635520, while the sum is 56.

The square root of 2064568889 is about 45437.5273204870. The cubic root of 2064568889 is about 1273.3363181601.

The spelling of 2064568889 in words is "two billion, sixty-four million, five hundred sixty-eight thousand, eight hundred eighty-nine".