191394494341 has 4 divisors (see below), whose sum is σ = 201467888800. Its totient is φ = 181321099884.

The previous prime is 191394494287. The next prime is 191394494351. The reversal of 191394494341 is 143494493191.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 191394494341 - 2¹³ = 191394486149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191394494351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5036697201 + ... + 5036697238.

It is an arithmetic number, because the mean of its divisors is an integer number (50366972200).

Almost surely, 2^191394494341 is an apocalyptic number.

It is an amenable number.

191394494341 is a deficient number, since it is larger than the sum of its proper divisors (10073394459).

191394494341 is a wasteful number, since it uses less digits than its factorization.

191394494341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10073394458.

The product of its digits is 1679616, while the sum is 52.

The spelling of 191394494341 in words is "one hundred ninety-one billion, three hundred ninety-four million, four hundred ninety-four thousand, three hundred forty-one".