2168485489 has 3 divisors (see below), whose sum is σ = 2168532057. Its totient is φ = 2168438922.

The previous prime is 2168485441. The next prime is 2168485547. The reversal of 2168485489 is 9845848612.

The square root of 2168485489 is 46567.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 2168485489 - 2¹¹ = 2168483441 is a prime.

It is a super-3 number, since 3×2168485489³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2168485589) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 23284 + ... + 69850.

It is an arithmetic number, because the mean of its divisors is an integer number (722844019).

Almost surely, 2^2168485489 is an apocalyptic number.

2168485489 is the 46567-th square number.

2168485489 is the 23284-th centered octagonal number.

It is an amenable number.

2168485489 is a deficient number, since it is larger than the sum of its proper divisors (46568).

2168485489 is an frugal number, since it uses more digits than its factorization.

2168485489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93134 (or 46567 counting only the distinct ones).

The product of its digits is 4423680, while the sum is 55.

The cubic root of 2168485489 is about 1294.3513274117.

The spelling of 2168485489 in words is "two billion, one hundred sixty-eight million, four hundred eighty-five thousand, four hundred eighty-nine".