11989592309 has 2 divisors, whose sum is σ = 11989592310. Its totient is φ = 11989592308.

The previous prime is 11989592281. The next prime is 11989592339. The reversal of 11989592309 is 90329598911.

11989592309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11188985284 + 800607025 = 105778^2 + 28295^2 .

It is an emirp because it is prime and its reverse (90329598911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11989592309 - 2²⁴ = 11972815093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11989592339) by changing a digit.

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 as a sum of consecutive naturals, namely, 5994796154 + 5994796155.

It is an arithmetic number, because the mean of its divisors is an integer number (5994796155).

Almost surely, 2^11989592309 is an apocalyptic number.

It is an amenable number.

11989592309 is a deficient number, since it is larger than the sum of its proper divisors (1).

11989592309 is an equidigital number, since it uses as much as digits as its factorization.

11989592309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1574640, while the sum is 56.

The spelling of 11989592309 in words is "eleven billion, nine hundred eighty-nine million, five hundred ninety-two thousand, three hundred nine".