6441275227 has 2 divisors, whose sum is σ = 6441275228. Its totient is φ = 6441275226.

The previous prime is 6441275149. The next prime is 6441275237. The reversal of 6441275227 is 7225721446.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6441275227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6441275227.

It is not a weakly prime, because it can be changed into another prime (6441275237) 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 as a sum of consecutive naturals, namely, 3220637613 + 3220637614.

It is an arithmetic number, because the mean of its divisors is an integer number (3220637614).

Almost surely, 2^6441275227 is an apocalyptic number.

6441275227 is a deficient number, since it is larger than the sum of its proper divisors (1).

6441275227 is an equidigital number, since it uses as much as digits as its factorization.

6441275227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 188160, while the sum is 40.

The square root of 6441275227 is about 80257.5555757836. Note that the first 4 decimals coincide. The cubic root of 6441275227 is about 1860.6182885918.

The spelling of 6441275227 in words is "six billion, four hundred forty-one million, two hundred seventy-five thousand, two hundred twenty-seven".