289043045602756 has 9 divisors (see below), whose sum is σ = 505825389309261. Its totient is φ = 144521505800112.

The previous prime is 289043045602697. The next prime is 289043045602769. The reversal of 289043045602756 is 657206540340982.

It is a happy number.

The square root of 289043045602756 is 17001266.

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., 26279464322500 + 262763581280256 = 5126350^2 + 16209984^2 .

It is a super-2 number, since 2×289043045602756² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 289043045602694 and 289043045602703.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 29752216 + ... + 38252848.

Almost surely, 2^{289043045602756} is an apocalyptic number.

289043045602756 is the 17001266-th square number.

It is an amenable number.

289043045602756 is a deficient number, since it is larger than the sum of its proper divisors (216782343706505).

289043045602756 is an frugal number, since it uses more digits than its factorization.

289043045602756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17001270 (or 8500635 counting only the distinct ones).

The product of its (nonzero) digits is 87091200, while the sum is 61.

The spelling of 289043045602756 in words is "two hundred eighty-nine trillion, forty-three billion, forty-five million, six hundred two thousand, seven hundred fifty-six".