194912225965 has 8 divisors (see below), whose sum is σ = 233899231608. Its totient is φ = 155926740480.

The previous prime is 194912225951. The next prime is 194912226013. The reversal of 194912225965 is 569522219491.

194912225965 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 48267650601 + 146644575364 = 219699^2 + 382942^2 .

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

It is not a de Polignac number, because 194912225965 - 2¹⁵ = 194912193197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75816 + ... + 628945.

It is an arithmetic number, because the mean of its divisors is an integer number (29237403951).

Almost surely, 2^194912225965 is an apocalyptic number.

It is an amenable number.

194912225965 is a deficient number, since it is larger than the sum of its proper divisors (38987005643).

194912225965 is an equidigital number, since it uses as much as digits as its factorization.

194912225965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760079.

The product of its digits is 3499200, while the sum is 55.

The spelling of 194912225965 in words is "one hundred ninety-four billion, nine hundred twelve million, two hundred twenty-five thousand, nine hundred sixty-five".