29800971729 has 48 divisors (see below), whose sum is σ = 48719833344. Its totient is φ = 17449344000.

The previous prime is 29800971719. The next prime is 29800971737. The reversal of 29800971729 is 92717900892.

It is not a de Polignac number, because 29800971729 - 2⁴ = 29800971713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29800971719) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 41004 + ... + 247554.

It is an arithmetic number, because the mean of its divisors is an integer number (1014996528).

Almost surely, 2^29800971729 is an apocalyptic number.

It is an amenable number.

29800971729 is a deficient number, since it is larger than the sum of its proper divisors (18918861615).

29800971729 is a wasteful number, since it uses less digits than its factorization.

29800971729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206638 (or 206635 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 54.

The spelling of 29800971729 in words is "twenty-nine billion, eight hundred million, nine hundred seventy-one thousand, seven hundred twenty-nine".