9368393985 has 20 divisors (see below), whose sum is σ = 16793714388. Its totient is φ = 4996476576.

The previous prime is 9368393959. The next prime is 9368393987. The reversal of 9368393985 is 5893938639.

It can be written as a sum of positive squares in 2 ways, for example, as 2334049344 + 7034344641 = 48312^2 + 83871^2 .

It is not a de Polignac number, because 9368393985 - 2⁶ = 9368393921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9368393987) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11565514 + ... + 11566323.

Almost surely, 2^9368393985 is an apocalyptic number.

It is an amenable number.

9368393985 is a deficient number, since it is larger than the sum of its proper divisors (7425320403).

9368393985 is a wasteful number, since it uses less digits than its factorization.

9368393985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23131854 (or 23131845 counting only the distinct ones).

The product of its digits is 37791360, while the sum is 63.

The square root of 9368393985 is about 96790.4643288790. The cubic root of 9368393985 is about 2108.0862820951.

The spelling of 9368393985 in words is "nine billion, three hundred sixty-eight million, three hundred ninety-three thousand, nine hundred eighty-five".