194381079949 has 8 divisors (see below), whose sum is σ = 224225972928. Its totient is φ = 165055228800.

The previous prime is 194381079947. The next prime is 194381079961. The reversal of 194381079949 is 949970183491.

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

It is not a de Polignac number, because 194381079949 - 2¹ = 194381079947 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 (194381079947) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 129759652 + ... + 129761149.

It is an arithmetic number, because the mean of its divisors is an integer number (28028246616).

Almost surely, 2^194381079949 is an apocalyptic number.

It is an amenable number.

194381079949 is a deficient number, since it is larger than the sum of its proper divisors (29844892979).

194381079949 is a wasteful number, since it uses less digits than its factorization.

194381079949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259520915.

The product of its (nonzero) digits is 17635968, while the sum is 64.

The spelling of 194381079949 in words is "one hundred ninety-four billion, three hundred eighty-one million, seventy-nine thousand, nine hundred forty-nine".