289229953724644 has 81 divisors (see below), whose sum is σ = 520010550423273. Its totient is φ = 140759662964256.

The previous prime is 289229953724629. The next prime is 289229953724683. The reversal of 289229953724644 is 446427359922982.

It is a happy number.

The square root of 289229953724644 is 17006762.

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., 178683907252900 + 110546046471744 = 13367270^2 + 10514088^2 .

It is a super-2 number, since 2×289229953724644² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 382073914714 + ... + 382073915470.

Almost surely, 2^{289229953724644} is an apocalyptic number.

289229953724644 is the 17006762-nd square number.

It is an amenable number.

289229953724644 is a deficient number, since it is larger than the sum of its proper divisors (230780596698629).

289229953724644 is an frugal number, since it uses more digits than its factorization.

289229953724644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2090 (or 1045 counting only the distinct ones).

The product of its digits is 3762339840, while the sum is 76.

The spelling of 289229953724644 in words is "two hundred eighty-nine trillion, two hundred twenty-nine billion, nine hundred fifty-three million, seven hundred twenty-four thousand, six hundred forty-four".