2064593989 has 2 divisors, whose sum is σ = 2064593990. Its totient is φ = 2064593988.

The previous prime is 2064593981. The next prime is 2064594001. The reversal of 2064593989 is 9893954602.

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., 1078005889 + 986588100 = 32833^2 + 31410^2 .

It is a cyclic number.

It is not a de Polignac number, because 2064593989 - 2³ = 2064593981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2064593981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1032296994 + 1032296995.

It is an arithmetic number, because the mean of its divisors is an integer number (1032296995).

Almost surely, 2^2064593989 is an apocalyptic number.

It is an amenable number.

2064593989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2064593989 is an equidigital number, since it uses as much as digits as its factorization.

2064593989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4199040, while the sum is 55.

The square root of 2064593989 is about 45437.8035230578. The cubic root of 2064593989 is about 1273.3414783354.

The spelling of 2064593989 in words is "two billion, sixty-four million, five hundred ninety-three thousand, nine hundred eighty-nine".