129263419693 has 2 divisors, whose sum is σ = 129263419694. Its totient is φ = 129263419692.

The previous prime is 129263419627. The next prime is 129263419711. The reversal of 129263419693 is 396914362921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111797947044 + 17465472649 = 334362^2 + 132157^2 .

It is a cyclic number.

It is not a de Polignac number, because 129263419693 - 2¹⁷ = 129263288621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129263419993) 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, 64631709846 + 64631709847.

It is an arithmetic number, because the mean of its divisors is an integer number (64631709847).

Almost surely, 2^129263419693 is an apocalyptic number.

It is an amenable number.

129263419693 is a deficient number, since it is larger than the sum of its proper divisors (1).

129263419693 is an equidigital number, since it uses as much as digits as its factorization.

129263419693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3779136, while the sum is 55.

The spelling of 129263419693 in words is "one hundred twenty-nine billion, two hundred sixty-three million, four hundred nineteen thousand, six hundred ninety-three".