344243878729 has 3 divisors (see below), whose sum is σ = 344244465453. Its totient is φ = 344243292006.

The previous prime is 344243878687. The next prime is 344243878801. The reversal of 344243878729 is 927878342443.

The square root of 344243878729 is 586723.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 344243878729 - 2²¹ = 344241781577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (344243828729) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 293362 + ... + 880084.

It is an arithmetic number, because the mean of its divisors is an integer number (114748155151).

Almost surely, 2^344243878729 is an apocalyptic number.

344243878729 is the 586723-rd square number.

344243878729 is the 293362-nd centered octagonal number.

It is an amenable number.

344243878729 is a deficient number, since it is larger than the sum of its proper divisors (586724).

344243878729 is an frugal number, since it uses more digits than its factorization.

344243878729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173446 (or 586723 counting only the distinct ones).

The product of its digits is 65028096, while the sum is 61.

The spelling of 344243878729 in words is "three hundred forty-four billion, two hundred forty-three million, eight hundred seventy-eight thousand, seven hundred twenty-nine".