9926486843999 has 4 divisors (see below), whose sum is σ = 10828894738920. Its totient is φ = 9024078949080.

The previous prime is 9926486843951. The next prime is 9926486844013. The reversal of 9926486843999 is 9993486846299.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9926486843999 - 2⁸ = 9926486843743 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9926486843999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9926486843909) 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, 451203947444 + ... + 451203947465.

It is an arithmetic number, because the mean of its divisors is an integer number (2707223684730).

Almost surely, 2^{9926486843999} is an apocalyptic number.

9926486843999 is a deficient number, since it is larger than the sum of its proper divisors (902407894921).

9926486843999 is a wasteful number, since it uses less digits than its factorization.

9926486843999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902407894920.

The product of its digits is 13060694016, while the sum is 86.

The spelling of 9926486843999 in words is "nine trillion, nine hundred twenty-six billion, four hundred eighty-six million, eight hundred forty-three thousand, nine hundred ninety-nine".