1712170710517 has 2 divisors, whose sum is σ = 1712170710518. Its totient is φ = 1712170710516.

The previous prime is 1712170710511. The next prime is 1712170710563. The reversal of 1712170710517 is 7150170712171.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1711507596516 + 663114001 = 1308246^2 + 25751^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1712170710517 is a prime.

It is a super-2 number, since 2×1712170710517² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1712170710517.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1712170710511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 856085355258 + 856085355259.

It is an arithmetic number, because the mean of its divisors is an integer number (856085355259).

Almost surely, 2^{1712170710517} is an apocalyptic number.

It is an amenable number.

1712170710517 is a deficient number, since it is larger than the sum of its proper divisors (1).

1712170710517 is an equidigital number, since it uses as much as digits as its factorization.

1712170710517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24010, while the sum is 40.

The spelling of 1712170710517 in words is "one trillion, seven hundred twelve billion, one hundred seventy million, seven hundred ten thousand, five hundred seventeen".