9979164178 has 8 divisors (see below), whose sum is σ = 14969659068. Its totient is φ = 4989277824.

The previous prime is 9979164149. The next prime is 9979164193. The reversal of 9979164178 is 8714619799.

9979164178 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8003628369 + 1975535809 = 89463^2 + 44447^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 108651 + ... + 178222.

Almost surely, 2^9979164178 is an apocalyptic number.

9979164178 is a deficient number, since it is larger than the sum of its proper divisors (4990494890).

9979164178 is a wasteful number, since it uses less digits than its factorization.

9979164178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304268.

The product of its digits is 6858432, while the sum is 61.

The square root of 9979164178 is about 99895.7665669572. The cubic root of 9979164178 is about 2152.9373356725.

The spelling of 9979164178 in words is "nine billion, nine hundred seventy-nine million, one hundred sixty-four thousand, one hundred seventy-eight".