289126561853284 has 9 divisors (see below), whose sum is σ = 505971542756281. Its totient is φ = 144563263922920.

The previous prime is 289126561853279. The next prime is 289126561853299. The reversal of 289126561853284 is 482358165621982.

The square root of 289126561853284 is 17003722.

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., 44027498043684 + 245099063809600 = 6635322^2 + 15655640^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 29756514 + ... + 38258374.

Almost surely, 2^{289126561853284} is an apocalyptic number.

289126561853284 is the 17003722-nd square number.

It is an amenable number.

289126561853284 is a deficient number, since it is larger than the sum of its proper divisors (216844980902997).

289126561853284 is an frugal number, since it uses more digits than its factorization.

289126561853284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17003726 (or 8501863 counting only the distinct ones).

The product of its digits is 398131200, while the sum is 70.

The spelling of 289126561853284 in words is "two hundred eighty-nine trillion, one hundred twenty-six billion, five hundred sixty-one million, eight hundred fifty-three thousand, two hundred eighty-four".