172711470689 has 2 divisors, whose sum is σ = 172711470690. Its totient is φ = 172711470688.

The previous prime is 172711470667. The next prime is 172711470691. The reversal of 172711470689 is 986074117271.

172711470689 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 can be written as a sum of positive squares in only one way, i.e., 150239961664 + 22471509025 = 387608^2 + 149905^2 .

It is a cyclic number.

It is not a de Polignac number, because 172711470689 - 2⁸ = 172711470433 is a prime.

It is a super-2 number, since 2×172711470689² (a number of 23 digits) contains 22 as substring.

Together with 172711470691, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 172711470689.

It is not a weakly prime, because it can be changed into another prime (172711470089) 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, 86355735344 + 86355735345.

It is an arithmetic number, because the mean of its divisors is an integer number (86355735345).

Almost surely, 2^172711470689 is an apocalyptic number.

It is an amenable number.

172711470689 is a deficient number, since it is larger than the sum of its proper divisors (1).

172711470689 is an equidigital number, since it uses as much as digits as its factorization.

172711470689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1185408, while the sum is 53.

The spelling of 172711470689 in words is "one hundred seventy-two billion, seven hundred eleven million, four hundred seventy thousand, six hundred eighty-nine".