129055877812992 has 288 divisors, whose sum is σ = 386244068990976. Its totient is φ = 37957080268800.

The previous prime is 129055877812973. The next prime is 129055877813017. The reversal of 129055877812992 is 299218778550921.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 337597642 + ... + 337979702.

It is an arithmetic number, because the mean of its divisors is an integer number (1341125239552).

Almost surely, 2^{129055877812992} is an apocalyptic number.

129055877812992 is a gapful number since it is divisible by the number (12) 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 129055877812992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193122034495488).

129055877812992 is an abundant number, since it is smaller than the sum of its proper divisors (257188191177984).

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

129055877812992 is a wasteful number, since it uses less digits than its factorization.

129055877812992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383587 (or 383573 counting only the distinct ones).

The product of its (nonzero) digits is 457228800, while the sum is 75.

The spelling of 129055877812992 in words is "one hundred twenty-nine trillion, fifty-five billion, eight hundred seventy-seven million, eight hundred twelve thousand, nine hundred ninety-two".