129967193081855 has 8 divisors (see below), whose sum is σ = 165134786504112. Its totient is φ = 97857651261568.

The previous prime is 129967193081851. The next prime is 129967193081863. The reversal of 129967193081855 is 558180391769921.

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

It is a cyclic number.

It is not a de Polignac number, because 129967193081855 - 2² = 129967193081851 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 (129967193081851) 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, 764512900397 + ... + 764512900566.

It is an arithmetic number, because the mean of its divisors is an integer number (20641848313014).

Almost surely, 2^{129967193081855} is an apocalyptic number.

129967193081855 is a deficient number, since it is larger than the sum of its proper divisors (35167593422257).

129967193081855 is a wasteful number, since it uses less digits than its factorization.

129967193081855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529025800985.

The product of its (nonzero) digits is 293932800, while the sum is 74.

The spelling of 129967193081855 in words is "one hundred twenty-nine trillion, nine hundred sixty-seven billion, one hundred ninety-three million, eighty-one thousand, eight hundred fifty-five".