1720733301713 has 2 divisors, whose sum is σ = 1720733301714. Its totient is φ = 1720733301712.

The previous prime is 1720733301689. The next prime is 1720733301719. The reversal of 1720733301713 is 3171033370271.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1364065156624 + 356668145089 = 1167932^2 + 597217^2 .

It is a cyclic number.

It is not a de Polignac number, because 1720733301713 - 2¹⁴ = 1720733285329 is a prime.

It is not a weakly prime, because it can be changed into another prime (1720733301719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 860366650856 + 860366650857.

It is an arithmetic number, because the mean of its divisors is an integer number (860366650857).

Almost surely, 2^{1720733301713} is an apocalyptic number.

It is an amenable number.

1720733301713 is a deficient number, since it is larger than the sum of its proper divisors (1).

1720733301713 is an equidigital number, since it uses as much as digits as its factorization.

1720733301713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55566, while the sum is 38.

Adding to 1720733301713 its reverse (3171033370271), we get a palindrome (4891766671984).

The spelling of 1720733301713 in words is "one trillion, seven hundred twenty billion, seven hundred thirty-three million, three hundred one thousand, seven hundred thirteen".