129348285893 has 2 divisors, whose sum is σ = 129348285894. Its totient is φ = 129348285892.

The previous prime is 129348285809. The next prime is 129348285929. The reversal of 129348285893 is 398582843921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122151648004 + 7196637889 = 349502^2 + 84833^2 .

It is an emirp because it is prime and its reverse (398582843921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 129348285893 - 2¹⁰ = 129348284869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129348275893) 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, 64674142946 + 64674142947.

It is an arithmetic number, because the mean of its divisors is an integer number (64674142947).

Almost surely, 2^129348285893 is an apocalyptic number.

It is an amenable number.

129348285893 is a deficient number, since it is larger than the sum of its proper divisors (1).

129348285893 is an equidigital number, since it uses as much as digits as its factorization.

129348285893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29859840, while the sum is 62.

The spelling of 129348285893 in words is "one hundred twenty-nine billion, three hundred forty-eight million, two hundred eighty-five thousand, eight hundred ninety-three".