9889766926 has 16 divisors (see below), whose sum is σ = 16407556704. Its totient is φ = 4441142304.

The previous prime is 9889766923. The next prime is 9889766927. The reversal of 9889766926 is 6296679889.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9889766923) 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 7 ways as a sum of consecutive naturals, for example, 5139250 + ... + 5141173.

It is an arithmetic number, because the mean of its divisors is an integer number (1025472294).

Almost surely, 2^9889766926 is an apocalyptic number.

9889766926 is a deficient number, since it is larger than the sum of its proper divisors (6517789778).

9889766926 is a wasteful number, since it uses less digits than its factorization.

9889766926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10280475.

The product of its digits is 141087744, while the sum is 70.

The square root of 9889766926 is about 99447.3072838073. The cubic root of 9889766926 is about 2146.4890905678.

The spelling of 9889766926 in words is "nine billion, eight hundred eighty-nine million, seven hundred sixty-six thousand, nine hundred twenty-six".