171051120689387 has 2 divisors, whose sum is σ = 171051120689388. Its totient is φ = 171051120689386.

The previous prime is 171051120689377. The next prime is 171051120689417. The reversal of 171051120689387 is 783986021150171.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 171051120689387 - 2⁸ = 171051120689131 is a prime.

It is not a weakly prime, because it can be changed into another prime (171051120689347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85525560344693 + 85525560344694.

It is an arithmetic number, because the mean of its divisors is an integer number (85525560344694).

Almost surely, 2^{171051120689387} is an apocalyptic number.

171051120689387 is a deficient number, since it is larger than the sum of its proper divisors (1).

171051120689387 is an equidigital number, since it uses as much as digits as its factorization.

171051120689387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5080320, while the sum is 59.

The spelling of 171051120689387 in words is "one hundred seventy-one trillion, fifty-one billion, one hundred twenty million, six hundred eighty-nine thousand, three hundred eighty-seven".