1289297383009 has 2 divisors, whose sum is σ = 1289297383010. Its totient is φ = 1289297383008.

The previous prime is 1289297382883. The next prime is 1289297383043. The reversal of 1289297383009 is 9003837929821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1006315941409 + 282981441600 = 1003153^2 + 531960^2 .

It is a cyclic number.

It is not a de Polignac number, because 1289297383009 - 2¹¹ = 1289297380961 is a prime.

It is not a weakly prime, because it can be changed into another prime (1289297383109) 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, 644648691504 + 644648691505.

It is an arithmetic number, because the mean of its divisors is an integer number (644648691505).

Almost surely, 2^{1289297383009} is an apocalyptic number.

It is an amenable number.

1289297383009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1289297383009 is an equidigital number, since it uses as much as digits as its factorization.

1289297383009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11757312, while the sum is 61.

The spelling of 1289297383009 in words is "one trillion, two hundred eighty-nine billion, two hundred ninety-seven million, three hundred eighty-three thousand, nine".