29104809621 has 8 divisors (see below), whose sum is σ = 39053588064. Its totient is φ = 19279618800.

The previous prime is 29104809619. The next prime is 29104809673. The reversal of 29104809621 is 12690840192.

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

It is not a de Polignac number, because 29104809621 - 2¹ = 29104809619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29104809521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30896355 + ... + 30897296.

It is an arithmetic number, because the mean of its divisors is an integer number (4881698508).

Almost surely, 2^29104809621 is an apocalyptic number.

It is an amenable number.

29104809621 is a deficient number, since it is larger than the sum of its proper divisors (9948778443).

29104809621 is a wasteful number, since it uses less digits than its factorization.

29104809621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61793811.

The product of its (nonzero) digits is 62208, while the sum is 42.

The spelling of 29104809621 in words is "twenty-nine billion, one hundred four million, eight hundred nine thousand, six hundred twenty-one".