29805173442 has 24 divisors (see below), whose sum is σ = 70448592240. Its totient is φ = 9031870680.

The previous prime is 29805173401. The next prime is 29805173537. The reversal of 29805173442 is 24437150892.

29805173442 is a `hidden beast` number, since 2 + 98 + 0 + 51 + 73 + 442 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75265392 + ... + 75265787.

It is an arithmetic number, because the mean of its divisors is an integer number (2935358010).

Almost surely, 2^29805173442 is an apocalyptic number.

29805173442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

29805173442 is an abundant number, since it is smaller than the sum of its proper divisors (40643418798).

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

29805173442 is a wasteful number, since it uses less digits than its factorization.

29805173442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150531198 (or 150531195 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 29805173442 in words is "twenty-nine billion, eight hundred five million, one hundred seventy-three thousand, four hundred forty-two".