2064651289 has 2 divisors, whose sum is σ = 2064651290. Its totient is φ = 2064651288.

The previous prime is 2064651287. The next prime is 2064651293. The reversal of 2064651289 is 9821564602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2051365264 + 13286025 = 45292^2 + 3645^2 .

It is a cyclic number.

It is not a de Polignac number, because 2064651289 - 2¹ = 2064651287 is a prime.

Together with 2064651287, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2064651287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1032325644 + 1032325645.

It is an arithmetic number, because the mean of its divisors is an integer number (1032325645).

Almost surely, 2^2064651289 is an apocalyptic number.

It is an amenable number.

2064651289 is a deficient number, since it is larger than the sum of its proper divisors (1).

2064651289 is an equidigital number, since it uses as much as digits as its factorization.

2064651289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 2064651289 is about 45438.4340509221. The cubic root of 2064651289 is about 1273.3532581805.

The spelling of 2064651289 in words is "two billion, sixty-four million, six hundred fifty-one thousand, two hundred eighty-nine".