9786794864 has 40 divisors (see below), whose sum is σ = 23640832128. Its totient is φ = 3813036480.

The previous prime is 9786794839. The next prime is 9786794893. The reversal of 9786794864 is 4684976879.

It is a super-3 number, since 3×9786794864³ (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9786794794 and 9786794803.

It is a congruent number.

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, 3970682 + ... + 3973145.

Almost surely, 2^9786794864 is an apocalyptic number.

It is an amenable number.

9786794864 is an abundant number, since it is smaller than the sum of its proper divisors (13854037264).

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

9786794864 is a wasteful number, since it uses less digits than its factorization.

9786794864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7943853 (or 7943847 counting only the distinct ones).

The product of its digits is 146313216, while the sum is 68.

The square root of 9786794864 is about 98928.2308747104. The cubic root of 9786794864 is about 2139.0133501639.

The spelling of 9786794864 in words is "nine billion, seven hundred eighty-six million, seven hundred ninety-four thousand, eight hundred sixty-four".