30129789888 has 336 divisors, whose sum is σ = 100737924000. Its totient is φ = 8813629440.

The previous prime is 30129789883. The next prime is 30129789929. The reversal of 30129789888 is 88898792103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30129789883) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6061068 + ... + 6066036.

It is an arithmetic number, because the mean of its divisors is an integer number (299815250).

Almost surely, 2^30129789888 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 30129789888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50368962000).

30129789888 is an abundant number, since it is smaller than the sum of its proper divisors (70608134112).

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

30129789888 is a wasteful number, since it uses less digits than its factorization.

30129789888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5041 (or 5014 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 63.

The spelling of 30129789888 in words is "thirty billion, one hundred twenty-nine million, seven hundred eighty-nine thousand, eight hundred eighty-eight".