129878884080000 has 640 divisors, whose sum is σ = 522546139209600. Its totient is φ = 31485784320000.

The previous prime is 129878884079983. The next prime is 129878884080019. The reversal of 129878884080000 is 80488878921.

It is a tau number, because it is divible by the number of its divisors (640).

It is a self number, because there is not a number n which added to its sum of digits gives 129878884080000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 21026859 + ... + 26493141.

It is an arithmetic number, because the mean of its divisors is an integer number (816478342515).

Almost surely, 2^{129878884080000} is an apocalyptic number.

129878884080000 is a gapful number since it is divisible by the number (10) 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 129878884080000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261273069604800).

129878884080000 is an abundant number, since it is smaller than the sum of its proper divisors (392667255129600).

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

129878884080000 is an equidigital number, since it uses as much as digits as its factorization.

129878884080000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5466337 (or 5466304 counting only the distinct ones).

The product of its (nonzero) digits is 16515072, while the sum is 63.

The spelling of 129878884080000 in words is "one hundred twenty-nine trillion, eight hundred seventy-eight billion, eight hundred eighty-four million, eighty thousand".