9689889892 has 48 divisors (see below), whose sum is σ = 17563513968. Its totient is φ = 4674170880.

The previous prime is 9689889829. The next prime is 9689889893. The reversal of 9689889892 is 2989889869.

9689889892 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 1089924196 + 8599965696 = 33014^2 + 92736^2 .

It is a super-2 number, since 2×9689889892² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9689889893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11306328 + ... + 11307184.

It is an arithmetic number, because the mean of its divisors is an integer number (365906541).

Almost surely, 2^9689889892 is an apocalyptic number.

It is an amenable number.

9689889892 is a deficient number, since it is larger than the sum of its proper divisors (7873624076).

9689889892 is a wasteful number, since it uses less digits than its factorization.

9689889892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456 (or 1454 counting only the distinct ones).

The product of its digits is 322486272, while the sum is 76.

The square root of 9689889892 is about 98437.2383399697. The cubic root of 9689889892 is about 2131.9300316603.

The spelling of 9689889892 in words is "nine billion, six hundred eighty-nine million, eight hundred eighty-nine thousand, eight hundred ninety-two".