2281686289 has 9 divisors (see below), whose sum is σ = 2346838011. Its totient is φ = 2218299480.

The previous prime is 2281686259. The next prime is 2281686301. The reversal of 2281686289 is 9826861822.

The square root of 2281686289 is 47767.

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., 2041684225 + 240002064 = 45185^2 + 15492^2 .

It is not a de Polignac number, because 2281686289 - 2¹⁷ = 2281555217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2281686259) 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, 1766734 + ... + 1768024.

It is an arithmetic number, because the mean of its divisors is an integer number (260759779).

Almost surely, 2^2281686289 is an apocalyptic number.

2281686289 is the 47767-th square number.

2281686289 is the 23884-th centered octagonal number.

It is an amenable number.

2281686289 is a deficient number, since it is larger than the sum of its proper divisors (65151722).

2281686289 is an frugal number, since it uses more digits than its factorization.

2281686289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2656 (or 1328 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 52.

The cubic root of 2281686289 is about 1316.4932727779.

The spelling of 2281686289 in words is "two billion, two hundred eighty-one million, six hundred eighty-six thousand, two hundred eighty-nine".