129338771327 has 4 divisors (see below), whose sum is σ = 129431223600. Its totient is φ = 129246319056.

The previous prime is 129338771281. The next prime is 129338771431. The reversal of 129338771327 is 723177833921.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 129338771327 - 2²⁴ = 129321994111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129338771227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46224038 + ... + 46226835.

It is an arithmetic number, because the mean of its divisors is an integer number (32357805900).

Almost surely, 2^129338771327 is an apocalyptic number.

129338771327 is a deficient number, since it is larger than the sum of its proper divisors (92452273).

129338771327 is an equidigital number, since it uses as much as digits as its factorization.

129338771327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92452272.

The product of its digits is 2667168, while the sum is 53.

The spelling of 129338771327 in words is "one hundred twenty-nine billion, three hundred thirty-eight million, seven hundred seventy-one thousand, three hundred twenty-seven".