129681834306 has 32 divisors (see below), whose sum is σ = 270659007360. Its totient is φ = 41344980864.

The previous prime is 129681834301. The next prime is 129681834313. The reversal of 129681834306 is 603438186921.

It is not an unprimeable number, because it can be changed into a prime (129681834301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3004776 + ... + 3047628.

It is an arithmetic number, because the mean of its divisors is an integer number (8458093980).

Almost surely, 2^129681834306 is an apocalyptic number.

129681834306 is an abundant number, since it is smaller than the sum of its proper divisors (140977173054).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129681834306 is a wasteful number, since it uses less digits than its factorization.

129681834306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64810.

The product of its (nonzero) digits is 1492992, while the sum is 51.

The spelling of 129681834306 in words is "one hundred twenty-nine billion, six hundred eighty-one million, eight hundred thirty-four thousand, three hundred six".