6480045647 has 2 divisors, whose sum is σ = 6480045648. Its totient is φ = 6480045646.

The previous prime is 6480045631. The next prime is 6480045673. The reversal of 6480045647 is 7465400846.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6480045647 - 2⁴ = 6480045631 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6480045598 and 6480045607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6480044647) 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 as a sum of consecutive naturals, namely, 3240022823 + 3240022824.

It is an arithmetic number, because the mean of its divisors is an integer number (3240022824).

Almost surely, 2^6480045647 is an apocalyptic number.

6480045647 is a deficient number, since it is larger than the sum of its proper divisors (1).

6480045647 is an equidigital number, since it uses as much as digits as its factorization.

6480045647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 645120, while the sum is 44.

The square root of 6480045647 is about 80498.7307167014. The cubic root of 6480045647 is about 1864.3438812115.

The spelling of 6480045647 in words is "six billion, four hundred eighty million, forty-five thousand, six hundred forty-seven".