173208289489 has 9 divisors (see below), whose sum is σ = 173748927387. Its totient is φ = 172669332504.

The previous prime is 173208289469. The next prime is 173208289511. The reversal of 173208289489 is 984982802371.

The square root of 173208289489 is 416183.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 23114033089 + 150094256400 = 152033^2 + 387420^2 .

It is not a de Polignac number, because 173208289489 - 2⁷ = 173208289361 is a prime.

It is a super-2 number, since 2×173208289489² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (173208289469) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 244299067 + ... + 244299775.

Almost surely, 2^173208289489 is an apocalyptic number.

173208289489 is the 416183-rd square number.

173208289489 is the 208092-nd centered octagonal number.

It is an amenable number.

173208289489 is a deficient number, since it is larger than the sum of its proper divisors (540637898).

173208289489 is an frugal number, since it uses more digits than its factorization.

173208289489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2592 (or 1296 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 61.

The spelling of 173208289489 in words is "one hundred seventy-three billion, two hundred eight million, two hundred eighty-nine thousand, four hundred eighty-nine".