9936359999 has 4 divisors (see below), whose sum is σ = 9938918880. Its totient is φ = 9933801120.

The previous prime is 9936359933. The next prime is 9936360001. The reversal of 9936359999 is 9999536399.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9999536399 = 50423 ⋅198313.

It is a cyclic number.

It is not a de Polignac number, because 9936359999 - 2²⁰ = 9935311423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9936359299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1273607 + ... + 1281384.

It is an arithmetic number, because the mean of its divisors is an integer number (2484729720).

Almost surely, 2^9936359999 is an apocalyptic number.

9936359999 is a deficient number, since it is larger than the sum of its proper divisors (2558881).

9936359999 is a wasteful number, since it uses less digits than its factorization.

9936359999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2558880.

The product of its digits is 143489070, while the sum is 71.

The square root of 9936359999 is about 99681.2921214407. The cubic root of 9936359999 is about 2149.8546863389.

The spelling of 9936359999 in words is "nine billion, nine hundred thirty-six million, three hundred fifty-nine thousand, nine hundred ninety-nine".