129269669939 has 8 divisors (see below), whose sum is σ = 132435230928. Its totient is φ = 126104711040.

The previous prime is 129269669897. The next prime is 129269670001. The reversal of 129269669939 is 939966962921.

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 129269669939 - 2²⁴ = 129252892723 is a prime.

It is a super-2 number, since 2×129269669939² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129269669839) 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, 300479 + ... + 590615.

It is an arithmetic number, because the mean of its divisors is an integer number (16554403866).

Almost surely, 2^129269669939 is an apocalyptic number.

129269669939 is a deficient number, since it is larger than the sum of its proper divisors (3165560989).

129269669939 is a wasteful number, since it uses less digits than its factorization.

129269669939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301045.

The product of its digits is 153055008, while the sum is 71.

The spelling of 129269669939 in words is "one hundred twenty-nine billion, two hundred sixty-nine million, six hundred sixty-nine thousand, nine hundred thirty-nine".