129788552512 has 224 divisors, whose sum is σ = 309893817600. Its totient is φ = 53432451072.

The previous prime is 129788552507. The next prime is 129788552557. The reversal of 129788552512 is 215255887921.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13783518 + ... + 13792930.

Almost surely, 2^129788552512 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 129788552512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154946908800).

129788552512 is an abundant number, since it is smaller than the sum of its proper divisors (180105265088).

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

129788552512 is a wasteful number, since it uses less digits than its factorization.

129788552512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9513 (or 9503 counting only the distinct ones).

The product of its digits is 4032000, while the sum is 55.

The spelling of 129788552512 in words is "one hundred twenty-nine billion, seven hundred eighty-eight million, five hundred fifty-two thousand, five hundred twelve".