17010492491521 has 2 divisors, whose sum is σ = 17010492491522. Its totient is φ = 17010492491520.

The previous prime is 17010492491501. The next prime is 17010492491537. The reversal of 17010492491521 is 12519429401071.

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., 12716641281600 + 4293851209921 = 3566040^2 + 2072161^2 .

It is a cyclic number.

It is not a de Polignac number, because 17010492491521 - 2²⁵ = 17010458937089 is a prime.

It is not a weakly prime, because it can be changed into another prime (17010492491501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8505246245760 + 8505246245761.

It is an arithmetic number, because the mean of its divisors is an integer number (8505246245761).

Almost surely, 2^{17010492491521} is an apocalyptic number.

It is an amenable number.

17010492491521 is a deficient number, since it is larger than the sum of its proper divisors (1).

17010492491521 is an equidigital number, since it uses as much as digits as its factorization.

17010492491521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 46.

The spelling of 17010492491521 in words is "seventeen trillion, ten billion, four hundred ninety-two million, four hundred ninety-one thousand, five hundred twenty-one".