129711170868 has 24 divisors (see below), whose sum is σ = 305597842368. Its totient is φ = 42817279296.

The previous prime is 129711170837. The next prime is 129711170887. The reversal of 129711170868 is 868071117921.

It is a self number, because there is not a number n which added to its sum of digits gives 129711170868.

It is a congruent number.

It is an unprimeable number.

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, 52470921 + ... + 52473392.

It is an arithmetic number, because the mean of its divisors is an integer number (12733243432).

Almost surely, 2^129711170868 is an apocalyptic number.

It is an amenable number.

129711170868 is an abundant number, since it is smaller than the sum of its proper divisors (175886671500).

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

129711170868 is a wasteful number, since it uses less digits than its factorization.

129711170868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104944423 (or 104944421 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 51.

The spelling of 129711170868 in words is "one hundred twenty-nine billion, seven hundred eleven million, one hundred seventy thousand, eight hundred sixty-eight".