129674335217 has 8 divisors (see below), whose sum is σ = 148226824512. Its totient is φ = 111128742000.

The previous prime is 129674335181. The next prime is 129674335237. The reversal of 129674335217 is 712533476921.

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 129674335217 - 2²² = 129670140913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129674335237) 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 in 7 ways as a sum of consecutive naturals, for example, 1683659 + ... + 1758992.

It is an arithmetic number, because the mean of its divisors is an integer number (18528353064).

Almost surely, 2^129674335217 is an apocalyptic number.

It is an amenable number.

129674335217 is a deficient number, since it is larger than the sum of its proper divisors (18552489295).

129674335217 is an equidigital number, since it uses as much as digits as its factorization.

129674335217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3448039.

The product of its digits is 1905120, while the sum is 50.

The spelling of 129674335217 in words is "one hundred twenty-nine billion, six hundred seventy-four million, three hundred thirty-five thousand, two hundred seventeen".