1289469339923 has 2 divisors, whose sum is σ = 1289469339924. Its totient is φ = 1289469339922.

The previous prime is 1289469339887. The next prime is 1289469339959. The reversal of 1289469339923 is 3299339649821.

It is a balanced prime because it is at equal distance from previous prime (1289469339887) and next prime (1289469339959).

It is an emirp because it is prime and its reverse (3299339649821) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1289469339923 is a prime.

It is not a weakly prime, because it can be changed into another prime (1289469309923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 644734669961 + 644734669962.

It is an arithmetic number, because the mean of its divisors is an integer number (644734669962).

Almost surely, 2^{1289469339923} is an apocalyptic number.

1289469339923 is a deficient number, since it is larger than the sum of its proper divisors (1).

1289469339923 is an equidigital number, since it uses as much as digits as its factorization.

1289469339923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136048896, while the sum is 68.

The spelling of 1289469339923 in words is "one trillion, two hundred eighty-nine billion, four hundred sixty-nine million, three hundred thirty-nine thousand, nine hundred twenty-three".