129327448841 has 2 divisors, whose sum is σ = 129327448842. Its totient is φ = 129327448840.

The previous prime is 129327448837. The next prime is 129327448843. The reversal of 129327448841 is 148844723921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127952151616 + 1375297225 = 357704^2 + 37085^2 .

It is a cyclic number.

It is not a de Polignac number, because 129327448841 - 2² = 129327448837 is a prime.

Together with 129327448843, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (129327448843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64663724420 + 64663724421.

It is an arithmetic number, because the mean of its divisors is an integer number (64663724421).

Almost surely, 2^129327448841 is an apocalyptic number.

It is an amenable number.

129327448841 is a deficient number, since it is larger than the sum of its proper divisors (1).

129327448841 is an equidigital number, since it uses as much as digits as its factorization.

129327448841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3096576, while the sum is 53.

The spelling of 129327448841 in words is "one hundred twenty-nine billion, three hundred twenty-seven million, four hundred forty-eight thousand, eight hundred forty-one".