6549908039 has 2 divisors, whose sum is σ = 6549908040. Its totient is φ = 6549908038.

The previous prime is 6549908023. The next prime is 6549908051. The reversal of 6549908039 is 9308099456.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6549908039 - 2⁴ = 6549908023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6549908009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3274954019 + 3274954020.

It is an arithmetic number, because the mean of its divisors is an integer number (3274954020).

Almost surely, 2^6549908039 is an apocalyptic number.

6549908039 is a deficient number, since it is larger than the sum of its proper divisors (1).

6549908039 is an equidigital number, since it uses as much as digits as its factorization.

6549908039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2099520, while the sum is 53.

The square root of 6549908039 is about 80931.5021422437. The cubic root of 6549908039 is about 1871.0198750060.

The spelling of 6549908039 in words is "six billion, five hundred forty-nine million, nine hundred eight thousand, thirty-nine".