29923356906 has 16 divisors (see below), whose sum is σ = 66496348800. Its totient is φ = 9974452284.

The previous prime is 29923356857. The next prime is 29923356917. The reversal of 29923356906 is 60965332992.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 554136239 = 29923356906 / (2 + 9 + 9 + 2 + 3 + 3 + 5 + 6 + 9 + 0 + 6).

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 277068066 + ... + 277068173.

It is an arithmetic number, because the mean of its divisors is an integer number (4156021800).

Almost surely, 2^29923356906 is an apocalyptic number.

29923356906 is an abundant number, since it is smaller than the sum of its proper divisors (36572991894).

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

29923356906 is a wasteful number, since it uses less digits than its factorization.

29923356906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554136250 (or 554136244 counting only the distinct ones).

The product of its (nonzero) digits is 4723920, while the sum is 54.

The spelling of 29923356906 in words is "twenty-nine billion, nine hundred twenty-three million, three hundred fifty-six thousand, nine hundred six".