2274128887 has 16 divisors (see below), whose sum is σ = 2446267392. Its totient is φ = 2108967520.

The previous prime is 2274128881. The next prime is 2274128921. The reversal of 2274128887 is 7888214722.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-2274128887 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2274128887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2274128881) 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 15 ways as a sum of consecutive naturals, for example, 105837 + ... + 125497.

It is an arithmetic number, because the mean of its divisors is an integer number (152891712).

Almost surely, 2^2274128887 is an apocalyptic number.

2274128887 is a deficient number, since it is larger than the sum of its proper divisors (172138505).

2274128887 is a wasteful number, since it uses less digits than its factorization.

2274128887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19838.

The product of its digits is 802816, while the sum is 49.

The square root of 2274128887 is about 47687.8274510383. The cubic root of 2274128887 is about 1315.0381685924.

The spelling of 2274128887 in words is "two billion, two hundred seventy-four million, one hundred twenty-eight thousand, eight hundred eighty-seven".