12844470161 has 4 divisors (see below), whose sum is σ = 12856053300. Its totient is φ = 12832887024.

The previous prime is 12844470151. The next prime is 12844470203. The reversal of 12844470161 is 16107444821.

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 620956561 + 12223513600 = 24919^2 + 110560^2 .

It is a cyclic number.

It is not a de Polignac number, because 12844470161 - 2¹⁸ = 12844208017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12844470151) 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, 5789906 + ... + 5792123.

It is an arithmetic number, because the mean of its divisors is an integer number (3214013325).

Almost surely, 2^12844470161 is an apocalyptic number.

It is an amenable number.

12844470161 is a deficient number, since it is larger than the sum of its proper divisors (11583139).

12844470161 is a wasteful number, since it uses less digits than its factorization.

12844470161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11583138.

The product of its (nonzero) digits is 43008, while the sum is 38.

The spelling of 12844470161 in words is "twelve billion, eight hundred forty-four million, four hundred seventy thousand, one hundred sixty-one".