86728982668 has 6 divisors (see below), whose sum is σ = 151775719676. Its totient is φ = 43364491332.

The previous prime is 86728982651. The next prime is 86728982701. The reversal of 86728982668 is 86628982768.

It is a junction number, because it is equal to n+sod(n) for n = 86728982597 and 86728982606.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10841122830 + ... + 10841122837.

Almost surely, 2^86728982668 is an apocalyptic number.

It is an amenable number.

86728982668 is a deficient number, since it is larger than the sum of its proper divisors (65046737008).

86728982668 is a wasteful number, since it uses less digits than its factorization.

86728982668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21682245671 (or 21682245669 counting only the distinct ones).

The product of its digits is 222953472, while the sum is 70.

The spelling of 86728982668 in words is "eighty-six billion, seven hundred twenty-eight million, nine hundred eighty-two thousand, six hundred sixty-eight".