9666839670 has 32 divisors (see below), whose sum is σ = 23265066240. Its totient is φ = 2570640480.

The previous prime is 9666839621. The next prime is 9666839681. The reversal of 9666839670 is 769386669.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 438016 + ... + 459555.

It is an arithmetic number, because the mean of its divisors is an integer number (727033320).

Almost surely, 2^9666839670 is an apocalyptic number.

9666839670 is an abundant number, since it is smaller than the sum of its proper divisors (13598226570).

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

9666839670 is a wasteful number, since it uses less digits than its factorization.

9666839670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897940.

The product of its (nonzero) digits is 17635968, while the sum is 60.

The square root of 9666839670 is about 98320.0878254286. The cubic root of 9666839670 is about 2130.2382175325.

The spelling of 9666839670 in words is "nine billion, six hundred sixty-six million, eight hundred thirty-nine thousand, six hundred seventy".