9926803366489 has 3 divisors (see below), whose sum is σ = 9926806517173. Its totient is φ = 9926800215806.

The previous prime is 9926803366477. The next prime is 9926803366499. The reversal of 9926803366489 is 9846633086299.

The square root of 9926803366489 is 3150683.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 9926803366489 - 2⁵ = 9926803366457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9926803366499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1575342 + ... + 4726024.

Almost surely, 2^{9926803366489} is an apocalyptic number.

9926803366489 is the 3150683-rd square number.

9926803366489 is the 1575342-nd centered octagonal number.

It is an amenable number.

9926803366489 is a deficient number, since it is larger than the sum of its proper divisors (3150684).

9926803366489 is an frugal number, since it uses more digits than its factorization.

9926803366489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6301366 (or 3150683 counting only the distinct ones).

The product of its (nonzero) digits is 725594112, while the sum is 73.

The spelling of 9926803366489 in words is "nine trillion, nine hundred twenty-six billion, eight hundred three million, three hundred sixty-six thousand, four hundred eighty-nine".