3399926644321 has 3 divisors (see below), whose sum is σ = 3399928488211. Its totient is φ = 3399924800432.

The previous prime is 3399926644319. The next prime is 3399926644357. The reversal of 3399926644321 is 1234466299933.

It is a happy number.

The square root of 3399926644321 is 1843889.

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 can be written as a sum of positive squares in only one way, i.e., 373857650721 + 3026068993600 = 611439^2 + 1739560^2 .

It is not a de Polignac number, because 3399926644321 - 2¹ = 3399926644319 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 3399926644321.

It is not an unprimeable number, because it can be changed into a prime (3399926624321) 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, 921945 + ... + 2765833.

Almost surely, 2^{3399926644321} is an apocalyptic number.

3399926644321 is the 1843889-th square number.

3399926644321 is the 921945-th centered octagonal number.

It is an amenable number.

3399926644321 is a deficient number, since it is larger than the sum of its proper divisors (1843890).

3399926644321 is an frugal number, since it uses more digits than its factorization.

3399926644321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3687778 (or 1843889 counting only the distinct ones).

The product of its digits is 45349632, while the sum is 61.

The spelling of 3399926644321 in words is "three trillion, three hundred ninety-nine billion, nine hundred twenty-six million, six hundred forty-four thousand, three hundred twenty-one".