8400743821333 has 2 divisors, whose sum is σ = 8400743821334. Its totient is φ = 8400743821332.

The previous prime is 8400743821319. The next prime is 8400743821357. The reversal of 8400743821333 is 3331283470048.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4992462921924 + 3408280899409 = 2234382^2 + 1846153^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8400743821333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8400743891333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4200371910666 + 4200371910667.

It is an arithmetic number, because the mean of its divisors is an integer number (4200371910667).

Almost surely, 2^{8400743821333} is an apocalyptic number.

It is an amenable number.

8400743821333 is a deficient number, since it is larger than the sum of its proper divisors (1).

8400743821333 is an equidigital number, since it uses as much as digits as its factorization.

8400743821333 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1161216, while the sum is 46.

The spelling of 8400743821333 in words is "eight trillion, four hundred billion, seven hundred forty-three million, eight hundred twenty-one thousand, three hundred thirty-three".