9131965668 has 144 divisors (see below), whose sum is σ = 27812104320. Its totient is φ = 2468040192.

The previous prime is 9131965657. The next prime is 9131965673. The reversal of 9131965668 is 8665691319.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4772680 + ... + 4774592.

Almost surely, 2^9131965668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9131965668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13906052160).

9131965668 is an abundant number, since it is smaller than the sum of its proper divisors (18680138652).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9131965668 is a wasteful number, since it uses less digits than its factorization.

9131965668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2946 (or 2941 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 54.

The square root of 9131965668 is about 95561.3188900195. The cubic root of 9131965668 is about 2090.2011869544.

The spelling of 9131965668 in words is "nine billion, one hundred thirty-one million, nine hundred sixty-five thousand, six hundred sixty-eight".