6720027647 has 2 divisors, whose sum is σ = 6720027648. Its totient is φ = 6720027646.

The previous prime is 6720027637. The next prime is 6720027683. The reversal of 6720027647 is 7467200276.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6720027647 - 2¹⁰ = 6720026623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6720027637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3360013823 + 3360013824.

It is an arithmetic number, because the mean of its divisors is an integer number (3360013824).

Almost surely, 2^6720027647 is an apocalyptic number.

6720027647 is a deficient number, since it is larger than the sum of its proper divisors (1).

6720027647 is an equidigital number, since it uses as much as digits as its factorization.

6720027647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 197568, while the sum is 41.

The square root of 6720027647 is about 81975.7747569366. The cubic root of 6720027647 is about 1887.0801800216.

The spelling of 6720027647 in words is "six billion, seven hundred twenty million, twenty-seven thousand, six hundred forty-seven".