2268351987 has 16 divisors (see below), whose sum is σ = 3311176320. Its totient is φ = 1369860800.

The previous prime is 2268351979. The next prime is 2268351991. The reversal of 2268351987 is 7891538622.

It is not a de Polignac number, because 2268351987 - 2³ = 2268351979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2268355987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113037 + ... + 131582.

It is an arithmetic number, because the mean of its divisors is an integer number (206948520).

Almost surely, 2^2268351987 is an apocalyptic number.

2268351987 is a deficient number, since it is larger than the sum of its proper divisors (1042824333).

2268351987 is a wasteful number, since it uses less digits than its factorization.

2268351987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244914.

The product of its digits is 1451520, while the sum is 51.

The square root of 2268351987 is about 47627.2189719282. The cubic root of 2268351987 is about 1313.9237073131.

It can be divided in two parts, 226835 and 1987, that added together give a palindrome (228822).

The spelling of 2268351987 in words is "two billion, two hundred sixty-eight million, three hundred fifty-one thousand, nine hundred eighty-seven".