2021344201409 has 8 divisors (see below), whose sum is σ = 2176874217000. Its totient is φ = 1865820185856.

The previous prime is 2021344201397. The next prime is 2021344201417. The reversal of 2021344201409 is 9041024431202.

It can be written as a sum of positive squares in 4 ways, for example, as 338058519184 + 1683285682225 = 581428^2 + 1297415^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2021344201409 - 2²⁸ = 2021075765953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021344201439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 787784 + ... + 2159465.

It is an arithmetic number, because the mean of its divisors is an integer number (272109277125).

Almost surely, 2^{2021344201409} is an apocalyptic number.

It is an amenable number.

2021344201409 is a deficient number, since it is larger than the sum of its proper divisors (155530015591).

2021344201409 is a wasteful number, since it uses less digits than its factorization.

2021344201409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3000019.

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 2021344201409 in words is "two trillion, twenty-one billion, three hundred forty-four million, two hundred one thousand, four hundred nine".