463646446189 has 4 divisors (see below), whose sum is σ = 467900083420. Its totient is φ = 459392808960.

The previous prime is 463646446139. The next prime is 463646446217. The reversal of 463646446189 is 981644646364.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 369096346089 + 94550100100 = 607533^2 + 307490^2 .

It is a cyclic number.

It is not a de Polignac number, because 463646446189 - 2²⁹ = 463109575277 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 (463646446129) 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, 2126818452 + ... + 2126818669.

It is an arithmetic number, because the mean of its divisors is an integer number (116975020855).

Almost surely, 2^463646446189 is an apocalyptic number.

It is an amenable number.

463646446189 is a deficient number, since it is larger than the sum of its proper divisors (4253637231).

463646446189 is a wasteful number, since it uses less digits than its factorization.

463646446189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4253637230.

The product of its digits is 71663616, while the sum is 61.

The spelling of 463646446189 in words is "four hundred sixty-three billion, six hundred forty-six million, four hundred forty-six thousand, one hundred eighty-nine".