6548339489 has 2 divisors, whose sum is σ = 6548339490. Its totient is φ = 6548339488.

The previous prime is 6548339471. The next prime is 6548339503. The reversal of 6548339489 is 9849338456.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6546104464 + 2235025 = 80908^2 + 1495^2 .

It is a cyclic number.

It is not a de Polignac number, because 6548339489 - 2⁸ = 6548339233 is a prime.

It is a super-2 number, since 2×6548339489² = 85761500126393562242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6548339449) 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, 3274169744 + 3274169745.

It is an arithmetic number, because the mean of its divisors is an integer number (3274169745).

Almost surely, 2^6548339489 is an apocalyptic number.

It is an amenable number.

6548339489 is a deficient number, since it is larger than the sum of its proper divisors (1).

6548339489 is an equidigital number, since it uses as much as digits as its factorization.

6548339489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22394880, while the sum is 59.

The square root of 6548339489 is about 80921.8109597159. The cubic root of 6548339489 is about 1870.8705078948.

The spelling of 6548339489 in words is "six billion, five hundred forty-eight million, three hundred thirty-nine thousand, four hundred eighty-nine".