6427329539 has 2 divisors, whose sum is σ = 6427329540. Its totient is φ = 6427329538.

The previous prime is 6427329521. The next prime is 6427329563. The reversal of 6427329539 is 9359237246.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6427329539 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (6427329509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3213664769 + 3213664770.

It is an arithmetic number, because the mean of its divisors is an integer number (3213664770).

Almost surely, 2^6427329539 is an apocalyptic number.

6427329539 is a deficient number, since it is larger than the sum of its proper divisors (1).

6427329539 is an equidigital number, since it uses as much as digits as its factorization.

6427329539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2449440, while the sum is 50.

The square root of 6427329539 is about 80170.6276575156. The cubic root of 6427329539 is about 1859.2745406672.

The spelling of 6427329539 in words is "six billion, four hundred twenty-seven million, three hundred twenty-nine thousand, five hundred thirty-nine".