2789312378 has 8 divisors (see below), whose sum is σ = 4184365440. Its totient is φ = 1394523900.

The previous prime is 2789312353. The next prime is 2789312399. The reversal of 2789312378 is 8732139872.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37268 + ... + 83471.

It is an arithmetic number, because the mean of its divisors is an integer number (523045680).

Almost surely, 2^2789312378 is an apocalyptic number.

2789312378 is a deficient number, since it is larger than the sum of its proper divisors (1395053062).

2789312378 is a wasteful number, since it uses less digits than its factorization.

2789312378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132292.

The product of its digits is 1016064, while the sum is 50.

The square root of 2789312378 is about 52813.9411330001. The cubic root of 2789312378 is about 1407.6641535653.

The spelling of 2789312378 in words is "two billion, seven hundred eighty-nine million, three hundred twelve thousand, three hundred seventy-eight".