17320850798981 has 2 divisors, whose sum is σ = 17320850798982. Its totient is φ = 17320850798980.

The previous prime is 17320850798917. The next prime is 17320850799011. The reversal of 17320850798981 is 18989705802371.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16712152802500 + 608697996481 = 4088050^2 + 780191^2 .

It is a cyclic number.

It is not a de Polignac number, because 17320850798981 - 2⁶ = 17320850798917 is a prime.

It is a super-2 number, since 2×17320850798981² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17320850798081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8660425399490 + 8660425399491.

It is an arithmetic number, because the mean of its divisors is an integer number (8660425399491).

Almost surely, 2^{17320850798981} is an apocalyptic number.

It is an amenable number.

17320850798981 is a deficient number, since it is larger than the sum of its proper divisors (1).

17320850798981 is an equidigital number, since it uses as much as digits as its factorization.

17320850798981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60963840, while the sum is 68.

The spelling of 17320850798981 in words is "seventeen trillion, three hundred twenty billion, eight hundred fifty million, seven hundred ninety-eight thousand, nine hundred eighty-one".