6564735373 has 16 divisors (see below), whose sum is σ = 7542501120. Its totient is φ = 5597024256.

The previous prime is 6564735347. The next prime is 6564735403. The reversal of 6564735373 is 3735374656.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 6564735373 - 2⁵ = 6564735341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6564735173) 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 in 15 ways as a sum of consecutive naturals, for example, 1413411 + ... + 1418047.

It is an arithmetic number, because the mean of its divisors is an integer number (471406320).

Almost surely, 2^6564735373 is an apocalyptic number.

It is an amenable number.

6564735373 is a deficient number, since it is larger than the sum of its proper divisors (977765747).

6564735373 is a wasteful number, since it uses less digits than its factorization.

6564735373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5676.

The product of its digits is 4762800, while the sum is 49.

The square root of 6564735373 is about 81023.0545770770. The cubic root of 6564735373 is about 1872.4306494743.

The spelling of 6564735373 in words is "six billion, five hundred sixty-four million, seven hundred thirty-five thousand, three hundred seventy-three".