2381643332213 has 8 divisors (see below), whose sum is σ = 2392245209688. Its totient is φ = 2371055871744.

The previous prime is 2381643332209. The next prime is 2381643332219. The reversal of 2381643332213 is 3122333461832.

It can be written as a sum of positive squares in 4 ways, for example, as 13562465764 + 2368080866449 = 116458^2 + 1538857^2 .

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 2381643332213 - 2² = 2381643332209 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2381643332219) 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, 3273056 + ... + 3933977.

It is an arithmetic number, because the mean of its divisors is an integer number (299030651211).

Almost surely, 2^{2381643332213} is an apocalyptic number.

It is an amenable number.

2381643332213 is a deficient number, since it is larger than the sum of its proper divisors (10601877475).

2381643332213 is a wasteful number, since it uses less digits than its factorization.

2381643332213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7208503.

The product of its digits is 373248, while the sum is 41.

The spelling of 2381643332213 in words is "two trillion, three hundred eighty-one billion, six hundred forty-three million, three hundred thirty-two thousand, two hundred thirteen".