17138121179 has 2 divisors, whose sum is σ = 17138121180. Its totient is φ = 17138121178.

The previous prime is 17138121113. The next prime is 17138121191. The reversal of 17138121179 is 97112183171.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 17138121179 - 2¹⁶ = 17138055643 is a prime.

It is not a weakly prime, because it can be changed into another prime (17138121079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8569060589 + 8569060590.

It is an arithmetic number, because the mean of its divisors is an integer number (8569060590).

Almost surely, 2^17138121179 is an apocalyptic number.

17138121179 is a deficient number, since it is larger than the sum of its proper divisors (1).

17138121179 is an equidigital number, since it uses as much as digits as its factorization.

17138121179 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 41.

The spelling of 17138121179 in words is "seventeen billion, one hundred thirty-eight million, one hundred twenty-one thousand, one hundred seventy-nine".