194153724343 has 4 divisors (see below), whose sum is σ = 194346147280. Its totient is φ = 193961301408.

The previous prime is 194153724293. The next prime is 194153724353. The reversal of 194153724343 is 343427351491.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 194153724343 - 2⁹ = 194153723831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 194153724293 and 194153724302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194153724353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96209955 + ... + 96211972.

It is an arithmetic number, because the mean of its divisors is an integer number (48586536820).

Almost surely, 2^194153724343 is an apocalyptic number.

194153724343 is a deficient number, since it is larger than the sum of its proper divisors (192422937).

194153724343 is a wasteful number, since it uses less digits than its factorization.

194153724343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192422936.

The product of its digits is 1088640, while the sum is 46.

The spelling of 194153724343 in words is "one hundred ninety-four billion, one hundred fifty-three million, seven hundred twenty-four thousand, three hundred forty-three".