194129849874 has 8 divisors (see below), whose sum is σ = 388259699760. Its totient is φ = 64709949956.

The previous prime is 194129849833. The next prime is 194129849887. The reversal of 194129849874 is 478948921491.

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

194129849874 is an admirable number.

It is a super-2 number, since 2×194129849874² (a number of 23 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 16177487484 + ... + 16177487495.

It is an arithmetic number, because the mean of its divisors is an integer number (48532462470).

Almost surely, 2^194129849874 is an apocalyptic number.

194129849874 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

194129849874 is a wasteful number, since it uses less digits than its factorization.

194129849874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32354974984.

The product of its digits is 41803776, while the sum is 66.

The spelling of 194129849874 in words is "one hundred ninety-four billion, one hundred twenty-nine million, eight hundred forty-nine thousand, eight hundred seventy-four".