129269669773 has 2 divisors, whose sum is σ = 129269669774. Its totient is φ = 129269669772.

The previous prime is 129269669759. The next prime is 129269669777. The reversal of 129269669773 is 377966962921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114787472809 + 14482196964 = 338803^2 + 120342^2 .

It is a cyclic number.

It is not a de Polignac number, because 129269669773 - 2⁵ = 129269669741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 129269669699 and 129269669708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129269669777) 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, 64634834886 + 64634834887.

It is an arithmetic number, because the mean of its divisors is an integer number (64634834887).

Almost surely, 2^129269669773 is an apocalyptic number.

It is an amenable number.

129269669773 is a deficient number, since it is larger than the sum of its proper divisors (1).

129269669773 is an equidigital number, since it uses as much as digits as its factorization.

129269669773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 92588832, while the sum is 67.

The spelling of 129269669773 in words is "one hundred twenty-nine billion, two hundred sixty-nine million, six hundred sixty-nine thousand, seven hundred seventy-three".