129812069184 has 224 divisors, whose sum is σ = 410240317440. Its totient is φ = 35420571648.

The previous prime is 129812069143. The next prime is 129812069201. The reversal of 129812069184 is 481960218921.

It is a tau number, because it is divible by the number of its divisors (224).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21913647 + ... + 21919569.

Almost surely, 2^129812069184 is an apocalyptic number.

129812069184 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 129812069184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205120158720).

129812069184 is an abundant number, since it is smaller than the sum of its proper divisors (280428248256).

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

129812069184 is a wasteful number, since it uses less digits than its factorization.

129812069184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6677 (or 6667 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 51.

The spelling of 129812069184 in words is "one hundred twenty-nine billion, eight hundred twelve million, sixty-nine thousand, one hundred eighty-four".