7963217866 has 16 divisors (see below), whose sum is σ = 12418801920. Its totient is φ = 3826516320.

The previous prime is 7963217861. The next prime is 7963217887. The reversal of 7963217866 is 6687123697.

It is a happy number.

7963217866 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (7963217861) 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, 719226 + ... + 730213.

It is an arithmetic number, because the mean of its divisors is an integer number (776175120).

Almost surely, 2^7963217866 is an apocalyptic number.

7963217866 is a deficient number, since it is larger than the sum of its proper divisors (4455584054).

7963217866 is a wasteful number, since it uses less digits than its factorization.

7963217866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1449549.

The product of its digits is 4572288, while the sum is 55.

The square root of 7963217866 is about 89236.8638288012. The cubic root of 7963217866 is about 1996.9301124729.

The spelling of 7963217866 in words is "seven billion, nine hundred sixty-three million, two hundred seventeen thousand, eight hundred sixty-six".