129634443073 has 2 divisors, whose sum is σ = 129634443074. Its totient is φ = 129634443072.

The previous prime is 129634443067. The next prime is 129634443121. The reversal of 129634443073 is 370344436921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82281201409 + 47353241664 = 286847^2 + 217608^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129634443073 is a prime.

It is not a weakly prime, because it can be changed into another prime (129634443023) 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, 64817221536 + 64817221537.

It is an arithmetic number, because the mean of its divisors is an integer number (64817221537).

Almost surely, 2^129634443073 is an apocalyptic number.

It is an amenable number.

129634443073 is a deficient number, since it is larger than the sum of its proper divisors (1).

129634443073 is an equidigital number, since it uses as much as digits as its factorization.

129634443073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368, while the sum is 46.

Adding to 129634443073 its reverse (370344436921), we get a palindrome (499978879994).

The spelling of 129634443073 in words is "one hundred twenty-nine billion, six hundred thirty-four million, four hundred forty-three thousand, seventy-three".