129457336289 has 2 divisors, whose sum is σ = 129457336290. Its totient is φ = 129457336288.

The previous prime is 129457336273. The next prime is 129457336321. The reversal of 129457336289 is 982633754921.

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., 129153984400 + 303351889 = 359380^2 + 17417^2 .

It is a cyclic number.

It is not a de Polignac number, because 129457336289 - 2⁴ = 129457336273 is a prime.

It is not a weakly prime, because it can be changed into another prime (129457338289) 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, 64728668144 + 64728668145.

It is an arithmetic number, because the mean of its divisors is an integer number (64728668145).

Almost surely, 2^129457336289 is an apocalyptic number.

It is an amenable number.

129457336289 is a deficient number, since it is larger than the sum of its proper divisors (1).

129457336289 is an equidigital number, since it uses as much as digits as its factorization.

129457336289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19595520, while the sum is 59.

The spelling of 129457336289 in words is "one hundred twenty-nine billion, four hundred fifty-seven million, three hundred thirty-six thousand, two hundred eighty-nine".