129079716927 has 8 divisors (see below), whose sum is σ = 196692902016. Its totient is φ = 73759838232.

The previous prime is 129079716919. The next prime is 129079716949. The reversal of 129079716927 is 729617970921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 129079716927 - 2³ = 129079716919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129079716977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3073326573 + ... + 3073326614.

It is an arithmetic number, because the mean of its divisors is an integer number (24586612752).

Almost surely, 2^129079716927 is an apocalyptic number.

129079716927 is a deficient number, since it is larger than the sum of its proper divisors (67613185089).

129079716927 is an equidigital number, since it uses as much as digits as its factorization.

129079716927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6146653197.

The product of its (nonzero) digits is 6001128, while the sum is 60.

The spelling of 129079716927 in words is "one hundred twenty-nine billion, seventy-nine million, seven hundred sixteen thousand, nine hundred twenty-seven".