6464305289 has 8 divisors (see below), whose sum is σ = 6962939592. Its totient is φ = 5965868160.

The previous prime is 6464305279. The next prime is 6464305307. The reversal of 6464305289 is 9825034646.

It can be written as a sum of positive squares in 4 ways, for example, as 2729017600 + 3735287689 = 52240^2 + 61117^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6464305289 - 2⁸ = 6464305033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6464305279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22709 + ... + 115949.

It is an arithmetic number, because the mean of its divisors is an integer number (870367449).

Almost surely, 2^6464305289 is an apocalyptic number.

It is an amenable number.

6464305289 is a deficient number, since it is larger than the sum of its proper divisors (498634303).

6464305289 is a wasteful number, since it uses less digits than its factorization.

6464305289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98587.

The product of its (nonzero) digits is 1244160, while the sum is 47.

The square root of 6464305289 is about 80400.9035334803. The cubic root of 6464305289 is about 1862.8331288516.

The spelling of 6464305289 in words is "six billion, four hundred sixty-four million, three hundred five thousand, two hundred eighty-nine".