3421363242621 has 16 divisors (see below), whose sum is σ = 4775978612160. Its totient is φ = 2175723580800.

The previous prime is 3421363242601. The next prime is 3421363242629. The reversal of 3421363242621 is 1262423631243.

It is not a de Polignac number, because 3421363242621 - 2¹¹ = 3421363240573 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3421363242621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3421363242629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236896480 + ... + 236910921.

It is an arithmetic number, because the mean of its divisors is an integer number (298498663260).

Almost surely, 2^{3421363242621} is an apocalyptic number.

It is an amenable number.

3421363242621 is a deficient number, since it is larger than the sum of its proper divisors (1354615369539).

3421363242621 is a wasteful number, since it uses less digits than its factorization.

3421363242621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473807516.

The product of its digits is 248832, while the sum is 39.

Adding to 3421363242621 its reverse (1262423631243), we get a palindrome (4683786873864).

The spelling of 3421363242621 in words is "three trillion, four hundred twenty-one billion, three hundred sixty-three million, two hundred forty-two thousand, six hundred twenty-one".