1179209109139 has 2 divisors, whose sum is σ = 1179209109140. Its totient is φ = 1179209109138.

The previous prime is 1179209109109. The next prime is 1179209109149. The reversal of 1179209109139 is 9319019029711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1179209109139 - 2¹¹ = 1179209107091 is a prime.

It is not a weakly prime, because it can be changed into another prime (1179209109109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 589604554569 + 589604554570.

It is an arithmetic number, because the mean of its divisors is an integer number (589604554570).

Almost surely, 2^{1179209109139} is an apocalyptic number.

1179209109139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1179209109139 is an equidigital number, since it uses as much as digits as its factorization.

1179209109139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 275562, while the sum is 52.

The spelling of 1179209109139 in words is "one trillion, one hundred seventy-nine billion, two hundred nine million, one hundred nine thousand, one hundred thirty-nine".