8420743052993 has 2 divisors, whose sum is σ = 8420743052994. Its totient is φ = 8420743052992.

The previous prime is 8420743052977. The next prime is 8420743053011. The reversal of 8420743052993 is 3992503470248.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8409437409409 + 11305643584 = 2899903^2 + 106328^2 .

It is a cyclic number.

It is not a de Polignac number, because 8420743052993 - 2⁴ = 8420743052977 is a prime.

It is not a weakly prime, because it can be changed into another prime (8420743052903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4210371526496 + 4210371526497.

It is an arithmetic number, because the mean of its divisors is an integer number (4210371526497).

Almost surely, 2^{8420743052993} is an apocalyptic number.

It is an amenable number.

8420743052993 is a deficient number, since it is larger than the sum of its proper divisors (1).

8420743052993 is an equidigital number, since it uses as much as digits as its factorization.

8420743052993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13063680, while the sum is 56.

The spelling of 8420743052993 in words is "eight trillion, four hundred twenty billion, seven hundred forty-three million, fifty-two thousand, nine hundred ninety-three".