8278678191790 has 16 divisors (see below), whose sum is σ = 14932730609280. Its totient is φ = 3304557973600.

The previous prime is 8278678191779. The next prime is 8278678191799. The reversal of 8278678191790 is 971918768728.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8278678191799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 864157861 + ... + 864167440.

It is an arithmetic number, because the mean of its divisors is an integer number (933295663080).

Almost surely, 2^{8278678191790} is an apocalyptic number.

8278678191790 is a deficient number, since it is larger than the sum of its proper divisors (6654052417490).

8278678191790 is a wasteful number, since it uses less digits than its factorization.

8278678191790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728325787.

The product of its (nonzero) digits is 170698752, while the sum is 73.

The spelling of 8278678191790 in words is "eight trillion, two hundred seventy-eight billion, six hundred seventy-eight million, one hundred ninety-one thousand, seven hundred ninety".