6146559989 has 2 divisors, whose sum is σ = 6146559990. Its totient is φ = 6146559988.

The previous prime is 6146559961. The next prime is 6146560027. The reversal of 6146559989 is 9899556416.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5769617764 + 376942225 = 75958^2 + 19415^2 .

It is a cyclic number.

It is not a de Polignac number, because 6146559989 - 2⁸ = 6146559733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6146519989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3073279994 + 3073279995.

It is an arithmetic number, because the mean of its divisors is an integer number (3073279995).

Almost surely, 2^6146559989 is an apocalyptic number.

It is an amenable number.

6146559989 is a deficient number, since it is larger than the sum of its proper divisors (1).

6146559989 is an equidigital number, since it uses as much as digits as its factorization.

6146559989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20995200, while the sum is 62.

The square root of 6146559989 is about 78399.9999298469. Note that the first 4 decimals coincide. The cubic root of 6146559989 is about 1831.7971326129.

The spelling of 6146559989 in words is "six billion, one hundred forty-six million, five hundred fifty-nine thousand, nine hundred eighty-nine".