17125857749543 has 2 divisors, whose sum is σ = 17125857749544. Its totient is φ = 17125857749542.

The previous prime is 17125857749513. The next prime is 17125857749599. The reversal of 17125857749543 is 34594775852171.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 17125857749543 - 2¹⁶ = 17125857684007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17125857749513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8562928874771 + 8562928874772.

It is an arithmetic number, because the mean of its divisors is an integer number (8562928874772).

Almost surely, 2^{17125857749543} is an apocalyptic number.

17125857749543 is a deficient number, since it is larger than the sum of its proper divisors (1).

17125857749543 is an equidigital number, since it uses as much as digits as its factorization.

17125857749543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 296352000, while the sum is 68.

The spelling of 17125857749543 in words is "seventeen trillion, one hundred twenty-five billion, eight hundred fifty-seven million, seven hundred forty-nine thousand, five hundred forty-three".