129673306012 has 6 divisors (see below), whose sum is σ = 226928285528. Its totient is φ = 64836653004.

The previous prime is 129673305977. The next prime is 129673306013. The reversal of 129673306012 is 210603376921.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129673306013) 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 as a sum of consecutive naturals, namely, 16209163248 + ... + 16209163255.

Almost surely, 2^129673306012 is an apocalyptic number.

It is an amenable number.

129673306012 is a deficient number, since it is larger than the sum of its proper divisors (97254979516).

129673306012 is a wasteful number, since it uses less digits than its factorization.

129673306012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32418326507 (or 32418326505 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 40.

The spelling of 129673306012 in words is "one hundred twenty-nine billion, six hundred seventy-three million, three hundred six thousand, twelve".