6427426647 has 16 divisors (see below), whose sum is σ = 9155596160. Its totient is φ = 3998836512.

The previous prime is 6427426637. The next prime is 6427426661. The reversal of 6427426647 is 7466247246.

It is a happy number.

6427426647 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6427426647 - 2¹⁸ = 6427164503 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6427426596 and 6427426605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6427426627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 837688 + ... + 845325.

It is an arithmetic number, because the mean of its divisors is an integer number (572224760).

Almost surely, 2^6427426647 is an apocalyptic number.

6427426647 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

6427426647 is a deficient number, since it is larger than the sum of its proper divisors (2728169513).

6427426647 is a wasteful number, since it uses less digits than its factorization.

6427426647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1683102.

The product of its digits is 2709504, while the sum is 48.

The square root of 6427426647 is about 80171.2332885057. The cubic root of 6427426647 is about 1859.2839043032.

The spelling of 6427426647 in words is "six billion, four hundred twenty-seven million, four hundred twenty-six thousand, six hundred forty-seven".