234666889583281 has 3 divisors (see below), whose sum is σ = 234666904902123. Its totient is φ = 234666874264440.

The previous prime is 234666889583267. The next prime is 234666889583293. The reversal of 234666889583281 is 182385988666432.

The square root of 234666889583281 is 15318841.

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 can be written as a sum of positive squares in only one way, i.e., 165925545301681 + 68741344281600 = 12881209^2 + 8291040^2 .

It is a de Polignac number, because none of the positive numbers 2^k-234666889583281 is a prime.

It is a super-2 number, since 2×234666889583281² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (234666889581281) by changing a digit.

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, 7659421 + ... + 22978261.

It is an arithmetic number, because the mean of its divisors is an integer number (78222301634041).

Almost surely, 2^{234666889583281} is an apocalyptic number.

234666889583281 is the 15318841-st square number.

234666889583281 is the 7659421-st centered octagonal number.

It is an amenable number.

234666889583281 is a deficient number, since it is larger than the sum of its proper divisors (15318842).

234666889583281 is an frugal number, since it uses more digits than its factorization.

234666889583281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30637682 (or 15318841 counting only the distinct ones).

The product of its digits is 5733089280, while the sum is 79.

The spelling of 234666889583281 in words is "two hundred thirty-four trillion, six hundred sixty-six billion, eight hundred eighty-nine million, five hundred eighty-three thousand, two hundred eighty-one".