7847197222866 has 16 divisors (see below), whose sum is σ = 16200665234688. Its totient is φ = 2531353942800.

The previous prime is 7847197222859. The next prime is 7847197222871. The reversal of 7847197222866 is 6682227917487.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7847197222866.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21094616005 + ... + 21094616376.

It is an arithmetic number, because the mean of its divisors is an integer number (1012541577168).

Almost surely, 2^{7847197222866} is an apocalyptic number.

7847197222866 is an abundant number, since it is smaller than the sum of its proper divisors (8353468011822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7847197222866 is a wasteful number, since it uses less digits than its factorization.

7847197222866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42189232417.

The product of its digits is 227598336, while the sum is 69.

The spelling of 7847197222866 in words is "seven trillion, eight hundred forty-seven billion, one hundred ninety-seven million, two hundred twenty-two thousand, eight hundred sixty-six".