194419644949 has 4 divisors (see below), whose sum is σ = 194775074464. Its totient is φ = 194064215436.

The previous prime is 194419644907. The next prime is 194419645003. The reversal of 194419644949 is 949446914491.

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 194419644949 - 2³³ = 185829710357 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 (194419645949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177713937 + ... + 177715030.

It is an arithmetic number, because the mean of its divisors is an integer number (48693768616).

Almost surely, 2^194419644949 is an apocalyptic number.

It is an amenable number.

194419644949 is a deficient number, since it is larger than the sum of its proper divisors (355429515).

194419644949 is an equidigital number, since it uses as much as digits as its factorization.

194419644949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355429514.

The product of its digits is 40310784, while the sum is 64.

The spelling of 194419644949 in words is "one hundred ninety-four billion, four hundred nineteen million, six hundred forty-four thousand, nine hundred forty-nine".