9816313986 has 24 divisors (see below), whose sum is σ = 21321735084. Its totient is φ = 3263942400.

The previous prime is 9816313967. The next prime is 9816314009. The reversal of 9816313986 is 6893136189.

9816313986 is a `hidden beast` number, since 98 + 163 + 1 + 398 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8917213761 + 899100225 = 94431^2 + 29985^2 .

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 672771 + ... + 687206.

Almost surely, 2^9816313986 is an apocalyptic number.

9816313986 is an abundant number, since it is smaller than the sum of its proper divisors (11505421098).

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

9816313986 is a wasteful number, since it uses less digits than its factorization.

9816313986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360386 (or 1360383 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 54.

The square root of 9816313986 is about 99077.3131751159. The cubic root of 9816313986 is about 2141.1617695362.

The spelling of 9816313986 in words is "nine billion, eight hundred sixteen million, three hundred thirteen thousand, nine hundred eighty-six".