6445227750539 has 2 divisors, whose sum is σ = 6445227750540. Its totient is φ = 6445227750538.

The previous prime is 6445227750527. The next prime is 6445227750541. The reversal of 6445227750539 is 9350577225446.

6445227750539 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6445227750539 is a prime.

Together with 6445227750541, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6445227750139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3222613875269 + 3222613875270.

It is an arithmetic number, because the mean of its divisors is an integer number (3222613875270).

Almost surely, 2^{6445227750539} is an apocalyptic number.

6445227750539 is a deficient number, since it is larger than the sum of its proper divisors (1).

6445227750539 is an equidigital number, since it uses as much as digits as its factorization.

6445227750539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504000, while the sum is 59.

The spelling of 6445227750539 in words is "six trillion, four hundred forty-five billion, two hundred twenty-seven million, seven hundred fifty thousand, five hundred thirty-nine".