129241747712 has 216 divisors, whose sum is σ = 344616683040. Its totient is φ = 47702753280.

The previous prime is 129241747697. The next prime is 129241747717. The reversal of 129241747712 is 217747142921.

It is not an unprimeable number, because it can be changed into a prime (129241747717) 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, 2597048 + ... + 2646344.

Almost surely, 2^129241747712 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 129241747712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172308341520).

129241747712 is an abundant number, since it is smaller than the sum of its proper divisors (215374935328).

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

129241747712 is a wasteful number, since it uses less digits than its factorization.

129241747712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49357 (or 49336 counting only the distinct ones).

The product of its digits is 395136, while the sum is 47.

The spelling of 129241747712 in words is "one hundred twenty-nine billion, two hundred forty-one million, seven hundred forty-seven thousand, seven hundred twelve".