29386403881728 has 144 divisors (see below), whose sum is σ = 79183079947776. Its totient is φ = 9673771069440.

The previous prime is 29386403881529. The next prime is 29386403881741. The reversal of 29386403881728 is 82718830468392.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170173926 + ... + 170346522.

Almost surely, 2^{29386403881728} 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 29386403881728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39591539973888).

29386403881728 is an abundant number, since it is smaller than the sum of its proper divisors (49796676066048).

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

29386403881728 is a wasteful number, since it uses less digits than its factorization.

29386403881728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175370 (or 175356 counting only the distinct ones).

The product of its (nonzero) digits is 222953472, while the sum is 69.

The spelling of 29386403881728 in words is "twenty-nine trillion, three hundred eighty-six billion, four hundred three million, eight hundred eighty-one thousand, seven hundred twenty-eight".