2789991226 has 16 divisors (see below), whose sum is σ = 4722870240. Its totient is φ = 1224447280.

The previous prime is 2789991173. The next prime is 2789991251. The reversal of 2789991226 is 6221999872.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2185876 + ... + 2187151.

It is an arithmetic number, because the mean of its divisors is an integer number (295179390).

Almost surely, 2^2789991226 is an apocalyptic number.

2789991226 is a deficient number, since it is larger than the sum of its proper divisors (1932879014).

2789991226 is a wasteful number, since it uses less digits than its factorization.

2789991226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4373069.

The product of its digits is 1959552, while the sum is 55.

The square root of 2789991226 is about 52820.3675299595. The cubic root of 2789991226 is about 1407.7783409054.

The spelling of 2789991226 in words is "two billion, seven hundred eighty-nine million, nine hundred ninety-one thousand, two hundred twenty-six".