194279074441 has 9 divisors (see below), whose sum is σ = 201222601671. Its totient is φ = 187567454424.

The previous prime is 194279074403. The next prime is 194279074447. The reversal of 194279074441 is 144470972491.

The square root of 194279074441 is 440771.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 101875234041 + 92403840400 = 319179^2 + 303980^2 .

It is not a de Polignac number, because 194279074441 - 2⁷ = 194279074313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194279074447) 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 8 ways as a sum of consecutive naturals, for example, 12774760 + ... + 12789958.

Almost surely, 2^194279074441 is an apocalyptic number.

194279074441 is the 440771-st square number.

194279074441 is the 220386-th centered octagonal number.

It is an amenable number.

194279074441 is a deficient number, since it is larger than the sum of its proper divisors (6943527230).

194279074441 is an frugal number, since it uses more digits than its factorization.

194279074441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30456 (or 15228 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 52.

The spelling of 194279074441 in words is "one hundred ninety-four billion, two hundred seventy-nine million, seventy-four thousand, four hundred forty-one".