29991596928 has 192 divisors, whose sum is σ = 85314366720. Its totient is φ = 9332776960.

The previous prime is 29991596917. The next prime is 29991596951. The reversal of 29991596928 is 82969519992.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14536825 + ... + 14538887.

It is an arithmetic number, because the mean of its divisors is an integer number (444345660).

Almost surely, 2^29991596928 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 29991596928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42657183360).

29991596928 is an abundant number, since it is smaller than the sum of its proper divisors (55322769792).

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

29991596928 is a wasteful number, since it uses less digits than its factorization.

29991596928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2245 (or 2216 counting only the distinct ones).

The product of its digits is 56687040, while the sum is 69.

The spelling of 29991596928 in words is "twenty-nine billion, nine hundred ninety-one million, five hundred ninety-six thousand, nine hundred twenty-eight".