1996810802717 has 2 divisors, whose sum is σ = 1996810802718. Its totient is φ = 1996810802716.

The previous prime is 1996810802699. The next prime is 1996810802803. The reversal of 1996810802717 is 7172080186991.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1529144935396 + 467665867321 = 1236586^2 + 683861^2 .

It is a cyclic number.

It is not a de Polignac number, because 1996810802717 - 2¹⁰ = 1996810801693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1996810802017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 998405401358 + 998405401359.

It is an arithmetic number, because the mean of its divisors is an integer number (998405401359).

Almost surely, 2^{1996810802717} is an apocalyptic number.

It is an amenable number.

1996810802717 is a deficient number, since it is larger than the sum of its proper divisors (1).

1996810802717 is an equidigital number, since it uses as much as digits as its factorization.

1996810802717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3048192, while the sum is 59.

The spelling of 1996810802717 in words is "one trillion, nine hundred ninety-six billion, eight hundred ten million, eight hundred two thousand, seven hundred seventeen".