2064444673 has 4 divisors (see below), whose sum is σ = 2064885588. Its totient is φ = 2064003760.

The previous prime is 2064444671. The next prime is 2064444689. The reversal of 2064444673 is 3764444602.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 895625329 + 1168819344 = 29927^2 + 34188^2 .

It is a cyclic number.

It is not a de Polignac number, because 2064444673 - 2¹ = 2064444671 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2064444671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213358 + ... + 222823.

It is an arithmetic number, because the mean of its divisors is an integer number (516221397).

Almost surely, 2^2064444673 is an apocalyptic number.

It is an amenable number.

2064444673 is a deficient number, since it is larger than the sum of its proper divisors (440915).

2064444673 is an equidigital number, since it uses as much as digits as its factorization.

2064444673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440914.

The product of its (nonzero) digits is 387072, while the sum is 40.

The square root of 2064444673 is about 45436.1604121651. The cubic root of 2064444673 is about 1273.3107806388.

The spelling of 2064444673 in words is "two billion, sixty-four million, four hundred forty-four thousand, six hundred seventy-three".