9668999129 has 4 divisors (see below), whose sum is σ = 10177893840. Its totient is φ = 9160104420.

The previous prime is 9668999111. The next prime is 9668999143. The reversal of 9668999129 is 9219998669.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9668999129 - 2²⁴ = 9652221913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9668999429) 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, 254447327 + ... + 254447364.

It is an arithmetic number, because the mean of its divisors is an integer number (2544473460).

Almost surely, 2^9668999129 is an apocalyptic number.

It is an amenable number.

9668999129 is a deficient number, since it is larger than the sum of its proper divisors (508894711).

9668999129 is a wasteful number, since it uses less digits than its factorization.

9668999129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508894710.

The product of its digits is 34012224, while the sum is 68.

The square root of 9668999129 is about 98331.0689914434. The cubic root of 9668999129 is about 2130.3968291625.

The spelling of 9668999129 in words is "nine billion, six hundred sixty-eight million, nine hundred ninety-nine thousand, one hundred twenty-nine".