17145857285873 has 2 divisors, whose sum is σ = 17145857285874. Its totient is φ = 17145857285872.

The previous prime is 17145857285789. The next prime is 17145857285911. The reversal of 17145857285873 is 37858275854171.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17145752592049 + 104693824 = 4140743^2 + 10232^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17145857285873 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 17145857285797 and 17145857285806.

It is not a weakly prime, because it can be changed into another prime (17145857215873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8572928642936 + 8572928642937.

It is an arithmetic number, because the mean of its divisors is an integer number (8572928642937).

Almost surely, 2^{17145857285873} is an apocalyptic number.

It is an amenable number.

17145857285873 is a deficient number, since it is larger than the sum of its proper divisors (1).

17145857285873 is an equidigital number, since it uses as much as digits as its factorization.

17145857285873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 526848000, while the sum is 71.

The spelling of 17145857285873 in words is "seventeen trillion, one hundred forty-five billion, eight hundred fifty-seven million, two hundred eighty-five thousand, eight hundred seventy-three".