129889164328 has 144 divisors (see below), whose sum is σ = 312222726900. Its totient is φ = 50472576000.

The previous prime is 129889164313. The next prime is 129889164337. The reversal of 129889164328 is 823461988921.

It can be written as a sum of positive squares in 2 ways, for example, as 113432892804 + 16456271524 = 336798^2 + 128282^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 19016818 + ... + 19023646.

Almost surely, 2^129889164328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129889164328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156111363450).

129889164328 is an abundant number, since it is smaller than the sum of its proper divisors (182333562572).

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

129889164328 is a wasteful number, since it uses less digits than its factorization.

129889164328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7272 (or 7250 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 61.

The spelling of 129889164328 in words is "one hundred twenty-nine billion, eight hundred eighty-nine million, one hundred sixty-four thousand, three hundred twenty-eight".