205463022189 has 16 divisors (see below), whose sum is σ = 275642288064. Its totient is φ = 136131408000.

The previous prime is 205463022181. The next prime is 205463022199. The reversal of 205463022189 is 981220364502.

It is not a de Polignac number, because 205463022189 - 2³ = 205463022181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 205463022189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205463022181) 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 15 ways as a sum of consecutive naturals, for example, 212217 + ... + 675249.

It is an arithmetic number, because the mean of its divisors is an integer number (17227643004).

Almost surely, 2^205463022189 is an apocalyptic number.

It is an amenable number.

205463022189 is a deficient number, since it is larger than the sum of its proper divisors (70179265875).

205463022189 is a wasteful number, since it uses less digits than its factorization.

205463022189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463948.

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 205463022189 in words is "two hundred five billion, four hundred sixty-three million, twenty-two thousand, one hundred eighty-nine".