29855105806 has 8 divisors (see below), whose sum is σ = 44783929224. Its totient is φ = 14927129400.

The previous prime is 29855105767. The next prime is 29855105809. The reversal of 29855105806 is 60850155892.

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

It is a self number, because there is not a number n which added to its sum of digits gives 29855105806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29855105809) 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, 114745 + ... + 269956.

It is an arithmetic number, because the mean of its divisors is an integer number (5597991153).

Almost surely, 2^29855105806 is an apocalyptic number.

29855105806 is a deficient number, since it is larger than the sum of its proper divisors (14928823418).

29855105806 is a wasteful number, since it uses less digits than its factorization.

29855105806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423506.

The product of its (nonzero) digits is 864000, while the sum is 49.

The spelling of 29855105806 in words is "twenty-nine billion, eight hundred fifty-five million, one hundred five thousand, eight hundred six".