9968671866 has 16 divisors (see below), whose sum is σ = 20130911424. Its totient is φ = 3290629344.

The previous prime is 9968671819. The next prime is 9968671883. The reversal of 9968671866 is 6681768699.

It is a junction number, because it is equal to n+sod(n) for n = 9968671797 and 9968671806.

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, 8064651 + ... + 8065886.

It is an arithmetic number, because the mean of its divisors is an integer number (1258181964).

Almost surely, 2^9968671866 is an apocalyptic number.

9968671866 is an abundant number, since it is smaller than the sum of its proper divisors (10162239558).

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

9968671866 is a wasteful number, since it uses less digits than its factorization.

9968671866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16130645.

The product of its digits is 47029248, while the sum is 66.

The square root of 9968671866 is about 99843.2364559563. The cubic root of 9968671866 is about 2152.1825225631.

The spelling of 9968671866 in words is "nine billion, nine hundred sixty-eight million, six hundred seventy-one thousand, eight hundred sixty-six".