2268611328481 has 3 divisors (see below), whose sum is σ = 2268612834673. Its totient is φ = 2268609822290.

The previous prime is 2268611328479. The next prime is 2268611328497. The reversal of 2268611328481 is 1848231168622.

The square root of 2268611328481 is 1506191.

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 is not a de Polignac number, because 2268611328481 - 2¹ = 2268611328479 is a prime.

It is a super-2 number, since 2×2268611328481² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2268611328881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 753096 + ... + 2259286.

Almost surely, 2^{2268611328481} is an apocalyptic number.

2268611328481 is the 1506191-st square number.

2268611328481 is the 753096-th centered octagonal number.

It is an amenable number.

2268611328481 is a deficient number, since it is larger than the sum of its proper divisors (1506192).

2268611328481 is an frugal number, since it uses more digits than its factorization.

2268611328481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3012382 (or 1506191 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 52.

The spelling of 2268611328481 in words is "two trillion, two hundred sixty-eight billion, six hundred eleven million, three hundred twenty-eight thousand, four hundred eighty-one".