2268403478884 has 27 divisors (see below), whose sum is σ = 4080095620587. Its totient is φ = 1103493417984.

The previous prime is 2268403478881. The next prime is 2268403478909. The reversal of 2268403478884 is 4888743048622.

The square root of 2268403478884 is 1506122.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 232302792484 + 2036100686400 = 481978^2 + 1426920^2 .

It is a super-3 number, since 3×2268403478884³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2268403478881) 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, 111442852 + ... + 111463204.

Almost surely, 2^{2268403478884} is an apocalyptic number.

2268403478884 is the 1506122-nd square number.

It is an amenable number.

2268403478884 is a deficient number, since it is larger than the sum of its proper divisors (1811692141703).

2268403478884 is an frugal number, since it uses more digits than its factorization.

2268403478884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40784 (or 20392 counting only the distinct ones).

The product of its (nonzero) digits is 132120576, while the sum is 64.

Multiplying 2268403478884 by its sum of digits (64), we get a square (145177822648576 = 12048976²).

The spelling of 2268403478884 in words is "two trillion, two hundred sixty-eight billion, four hundred three million, four hundred seventy-eight thousand, eight hundred eighty-four".