173117954287 has 2 divisors, whose sum is σ = 173117954288. Its totient is φ = 173117954286.

The previous prime is 173117954227. The next prime is 173117954293. The reversal of 173117954287 is 782459711371.

173117954287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 173117954287 - 2⁷ = 173117954159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (173117954227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86558977143 + 86558977144.

It is an arithmetic number, because the mean of its divisors is an integer number (86558977144).

Almost surely, 2^173117954287 is an apocalyptic number.

173117954287 is a deficient number, since it is larger than the sum of its proper divisors (1).

173117954287 is an equidigital number, since it uses as much as digits as its factorization.

173117954287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2963520, while the sum is 55.

The spelling of 173117954287 in words is "one hundred seventy-three billion, one hundred seventeen million, nine hundred fifty-four thousand, two hundred eighty-seven".