194544451227 has 30 divisors (see below), whose sum is σ = 302664934428. Its totient is φ = 111146866992.

The previous prime is 194544451207. The next prime is 194544451243. The reversal of 194544451227 is 722154445491.

It is not a de Polignac number, because 194544451227 - 2⁷ = 194544451099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (194544451207) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 37431393 + ... + 37436589.

Almost surely, 2^194544451227 is an apocalyptic number.

194544451227 is a deficient number, since it is larger than the sum of its proper divisors (108120483201).

194544451227 is an frugal number, since it uses more digits than its factorization.

194544451227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10425 (or 5207 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 48.

Multiplying 194544451227 by its sum of digits (48), we get a square (9338133658896 = 3055836²).

The spelling of 194544451227 in words is "one hundred ninety-four billion, five hundred forty-four million, four hundred fifty-one thousand, two hundred twenty-seven".