129899282688 has 1080 divisors, whose sum is σ = 486982934592. Its totient is φ = 33699815424.

The previous prime is 129899282627. The next prime is 129899282701. The reversal of 129899282688 is 886282998921.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1938795231 + ... + 1938795297.

Almost surely, 2^129899282688 is an apocalyptic number.

129899282688 is a gapful number since it is divisible by the number (18) 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 129899282688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243491467296).

129899282688 is an abundant number, since it is smaller than the sum of its proper divisors (357083651904).

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

129899282688 is an equidigital number, since it uses as much as digits as its factorization.

129899282688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177 (or 135 counting only the distinct ones).

The product of its digits is 143327232, while the sum is 72.

The spelling of 129899282688 in words is "one hundred twenty-nine billion, eight hundred ninety-nine million, two hundred eighty-two thousand, six hundred eighty-eight".