29984447181648 has 80 divisors (see below), whose sum is σ = 78554131070976. Its totient is φ = 9853626464640.

The previous prime is 29984447181643. The next prime is 29984447181649. The reversal of 29984447181648 is 84618174448992.

It is a self number, because there is not a number n which added to its sum of digits gives 29984447181648.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29984447181643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86195361 + ... + 86542527.

Almost surely, 2^{29984447181648} is an apocalyptic number.

It is an amenable number.

29984447181648 is an abundant number, since it is smaller than the sum of its proper divisors (48569683889328).

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

29984447181648 is a wasteful number, since it uses less digits than its factorization.

29984447181648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372592 (or 372586 counting only the distinct ones).

The product of its digits is 891813888, while the sum is 75.

The spelling of 29984447181648 in words is "twenty-nine trillion, nine hundred eighty-four billion, four hundred forty-seven million, one hundred eighty-one thousand, six hundred forty-eight".