9969042179 has 2 divisors, whose sum is σ = 9969042180. Its totient is φ = 9969042178.

The previous prime is 9969042157. The next prime is 9969042221. The reversal of 9969042179 is 9712409699.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9969042179 - 2¹² = 9969038083 is a prime.

It is not a weakly prime, because it can be changed into another prime (9969042779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4984521089 + 4984521090.

It is an arithmetic number, because the mean of its divisors is an integer number (4984521090).

Almost surely, 2^9969042179 is an apocalyptic number.

9969042179 is a deficient number, since it is larger than the sum of its proper divisors (1).

9969042179 is an equidigital number, since it uses as much as digits as its factorization.

9969042179 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2204496, while the sum is 56.

The square root of 9969042179 is about 99845.0909108705. The cubic root of 9969042179 is about 2152.2091717600.

The spelling of 9969042179 in words is "nine billion, nine hundred sixty-nine million, forty-two thousand, one hundred seventy-nine".