6551736452489 has 2 divisors, whose sum is σ = 6551736452490. Its totient is φ = 6551736452488.

The previous prime is 6551736452483. The next prime is 6551736452497. The reversal of 6551736452489 is 9842546371556.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6062960686864 + 488775765625 = 2462308^2 + 699125^2 .

It is a cyclic number.

It is not a de Polignac number, because 6551736452489 - 2⁴⁰ = 5452224824713 is a prime.

It is not a weakly prime, because it can be changed into another prime (6551736452483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3275868226244 + 3275868226245.

It is an arithmetic number, because the mean of its divisors is an integer number (3275868226245).

Almost surely, 2^{6551736452489} is an apocalyptic number.

It is an amenable number.

6551736452489 is a deficient number, since it is larger than the sum of its proper divisors (1).

6551736452489 is an equidigital number, since it uses as much as digits as its factorization.

6551736452489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728000, while the sum is 65.

The spelling of 6551736452489 in words is "six trillion, five hundred fifty-one billion, seven hundred thirty-six million, four hundred fifty-two thousand, four hundred eighty-nine".