29505850339128 has 16 divisors (see below), whose sum is σ = 73764625847880. Its totient is φ = 9835283446368.

The previous prime is 29505850339123. The next prime is 29505850339151. The reversal of 29505850339128 is 82193305850592.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29505850339123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 614705215375 + ... + 614705215422.

Almost surely, 2^{29505850339128} is an apocalyptic number.

It is an amenable number.

29505850339128 is an abundant number, since it is smaller than the sum of its proper divisors (44258775508752).

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

29505850339128 is a wasteful number, since it uses less digits than its factorization.

29505850339128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229410430806 (or 1229410430802 counting only the distinct ones).

The product of its (nonzero) digits is 23328000, while the sum is 60.

The spelling of 29505850339128 in words is "twenty-nine trillion, five hundred five billion, eight hundred fifty million, three hundred thirty-nine thousand, one hundred twenty-eight".