29421017855 has 8 divisors (see below), whose sum is σ = 35629123200. Its totient is φ = 23320879776.

The previous prime is 29421017849. The next prime is 29421017863. The reversal of 29421017855 is 55871012492.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 29421017855 - 2⁴ = 29421017839 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26991215 + ... + 26992304.

It is an arithmetic number, because the mean of its divisors is an integer number (4453640400).

Almost surely, 2^29421017855 is an apocalyptic number.

29421017855 is a deficient number, since it is larger than the sum of its proper divisors (6208105345).

29421017855 is a wasteful number, since it uses less digits than its factorization.

29421017855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53983633.

The product of its (nonzero) digits is 201600, while the sum is 44.

The spelling of 29421017855 in words is "twenty-nine billion, four hundred twenty-one million, seventeen thousand, eight hundred fifty-five".