6500473009 has 2 divisors, whose sum is σ = 6500473010. Its totient is φ = 6500473008.

The previous prime is 6500472977. The next prime is 6500473033. The reversal of 6500473009 is 9003740056.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6480250000 + 20223009 = 80500^2 + 4497^2 .

It is a cyclic number.

It is not a de Polignac number, because 6500473009 - 2⁵ = 6500472977 is a prime.

It is a super-2 number, since 2×6500473009² = 84512298681475028162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6500473079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3250236504 + 3250236505.

It is an arithmetic number, because the mean of its divisors is an integer number (3250236505).

Almost surely, 2^6500473009 is an apocalyptic number.

It is an amenable number.

6500473009 is a deficient number, since it is larger than the sum of its proper divisors (1).

6500473009 is an equidigital number, since it uses as much as digits as its factorization.

6500473009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 6500473009 is about 80625.5109069084. The cubic root of 6500473009 is about 1866.3008468329.

The spelling of 6500473009 in words is "six billion, five hundred million, four hundred seventy-three thousand, nine".