6504026009 has 12 divisors (see below), whose sum is σ = 7045266492. Its totient is φ = 6001632000.

The previous prime is 6504026003. The next prime is 6504026027. The reversal of 6504026009 is 9006204056.

It can be written as a sum of positive squares in 6 ways, for example, as 3008851609 + 3495174400 = 54853^2 + 59120^2 .

It is not a de Polignac number, because 6504026009 - 2⁴ = 6504025993 is a prime.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6504026003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 705389 + ... + 714549.

It is an arithmetic number, because the mean of its divisors is an integer number (587105541).

Almost surely, 2^6504026009 is an apocalyptic number.

It is an amenable number.

6504026009 is a deficient number, since it is larger than the sum of its proper divisors (541240483).

6504026009 is a wasteful number, since it uses less digits than its factorization.

6504026009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13388 (or 13375 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 6504026009 is about 80647.5418658250. The cubic root of 6504026009 is about 1866.6408097432.

The spelling of 6504026009 in words is "six billion, five hundred four million, twenty-six thousand, nine".