344242324203209 has 4 divisors (see below), whose sum is σ = 344777693292816. Its totient is φ = 343706955113604.

The previous prime is 344242324203161. The next prime is 344242324203229. The reversal of 344242324203209 is 902302423242443.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 344242324203209 - 2²⁰ = 344242323154633 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 344242324203209.

It is not an unprimeable number, because it can be changed into a prime (344242324203229) 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, 267684543839 + ... + 267684545124.

It is an arithmetic number, because the mean of its divisors is an integer number (86194423323204).

Almost surely, 2^{344242324203209} is an apocalyptic number.

It is an amenable number.

344242324203209 is a deficient number, since it is larger than the sum of its proper divisors (535369089607).

344242324203209 is an equidigital number, since it uses as much as digits as its factorization.

344242324203209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535369089606.

The product of its (nonzero) digits is 1990656, while the sum is 44.

The spelling of 344242324203209 in words is "three hundred forty-four trillion, two hundred forty-two billion, three hundred twenty-four million, two hundred three thousand, two hundred nine".