9668911829 has 4 divisors (see below), whose sum is σ = 9669151884. Its totient is φ = 9668671776.

The previous prime is 9668911771. The next prime is 9668911853. The reversal of 9668911829 is 9281198669.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7660975729 + 2007936100 = 87527^2 + 44810^2 .

It is a cyclic number.

It is not a de Polignac number, because 9668911829 - 2¹² = 9668907733 is a prime.

It is a super-2 number, since 2×9668911829² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9668917829) 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, 43232 + ... + 145625.

It is an arithmetic number, because the mean of its divisors is an integer number (2417287971).

Almost surely, 2^9668911829 is an apocalyptic number.

It is an amenable number.

9668911829 is a deficient number, since it is larger than the sum of its proper divisors (240055).

9668911829 is a wasteful number, since it uses less digits than its factorization.

9668911829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240054.

The product of its digits is 3359232, while the sum is 59.

The square root of 9668911829 is about 98330.6250819143. The cubic root of 9668911829 is about 2130.3904174612.

The spelling of 9668911829 in words is "nine billion, six hundred sixty-eight million, nine hundred eleven thousand, eight hundred twenty-nine".