129881829988504 has 96 divisors (see below), whose sum is σ = 268205628035520. Its totient is φ = 58921309656000.

The previous prime is 129881829988501. The next prime is 129881829988567. The reversal of 129881829988504 is 405889928188921.

It is a super-2 number, since 2×129881829988504² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129881829988501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3384876439 + ... + 3384914809.

It is an arithmetic number, because the mean of its divisors is an integer number (2793808625370).

Almost surely, 2^{129881829988504} 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 129881829988504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134102814017760).

129881829988504 is an abundant number, since it is smaller than the sum of its proper divisors (138323798047016).

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

129881829988504 is a wasteful number, since it uses less digits than its factorization.

129881829988504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45173 (or 45158 counting only the distinct ones).

The product of its (nonzero) digits is 1911029760, while the sum is 82.

The spelling of 129881829988504 in words is "one hundred twenty-nine trillion, eight hundred eighty-one billion, eight hundred twenty-nine million, nine hundred eighty-eight thousand, five hundred four".