9698778969 has 32 divisors (see below), whose sum is σ = 14857551360. Its totient is φ = 5565772800.

The previous prime is 9698778967. The next prime is 9698778983.

It is a happy number.

9698778969 is nontrivially palindromic in base 10.

9698778969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9698778969 - 2¹ = 9698778967 is a prime.

It is a super-2 number, since 2×9698778969² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9698778894 and 9698778903.

It is not an unprimeable number, because it can be changed into a prime (9698778967) 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 31 ways as a sum of consecutive naturals, for example, 1964434 + ... + 1969364.

It is an arithmetic number, because the mean of its divisors is an integer number (464298480).

Almost surely, 2^9698778969 is an apocalyptic number.

It is an amenable number.

9698778969 is a deficient number, since it is larger than the sum of its proper divisors (5158772391).

9698778969 is a wasteful number, since it uses less digits than its factorization.

9698778969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8101.

The product of its digits is 740710656, while the sum is 78.

The square root of 9698778969 is about 98482.3789771551. The cubic root of 9698778969 is about 2132.5817452322.

The spelling of 9698778969 in words is "nine billion, six hundred ninety-eight million, seven hundred seventy-eight thousand, nine hundred sixty-nine".