344606251021 has 12 divisors (see below), whose sum is σ = 346906385280. Its totient is φ = 342314442000.

The previous prime is 344606251013. The next prime is 344606251043. The reversal of 344606251021 is 120152606443.

It is not a de Polignac number, because 344606251021 - 2³ = 344606251013 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 (344606251621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 203546851 + ... + 203548543.

It is an arithmetic number, because the mean of its divisors is an integer number (28908865440).

Almost surely, 2^344606251021 is an apocalyptic number.

It is an amenable number.

344606251021 is a deficient number, since it is larger than the sum of its proper divisors (2300134259).

344606251021 is an frugal number, since it uses more digits than its factorization.

344606251021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4116 (or 2423 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

Adding to 344606251021 its reverse (120152606443), we get a palindrome (464758857464).

The spelling of 344606251021 in words is "three hundred forty-four billion, six hundred six million, two hundred fifty-one thousand, twenty-one".