129376369667 has 4 divisors (see below), whose sum is σ = 130244667600. Its totient is φ = 128508071736.

The previous prime is 129376369559. The next prime is 129376369691. The reversal of 129376369667 is 766963673921.

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 129376369667 - 2¹⁰ = 129376368643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129376360667) 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, 434148743 + ... + 434149040.

It is an arithmetic number, because the mean of its divisors is an integer number (32561166900).

Almost surely, 2^129376369667 is an apocalyptic number.

129376369667 is a deficient number, since it is larger than the sum of its proper divisors (868297933).

129376369667 is an equidigital number, since it uses as much as digits as its factorization.

129376369667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868297932.

The product of its digits is 92588832, while the sum is 65.

The spelling of 129376369667 in words is "one hundred twenty-nine billion, three hundred seventy-six million, three hundred sixty-nine thousand, six hundred sixty-seven".