11864091289 has 2 divisors, whose sum is σ = 11864091290. Its totient is φ = 11864091288.

The previous prime is 11864091277. The next prime is 11864091293. The reversal of 11864091289 is 98219046811.

11864091289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7492633600 + 4371457689 = 86560^2 + 66117^2 .

It is an emirp because it is prime and its reverse (98219046811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11864091289 - 2¹⁷ = 11863960217 is a prime.

It is a super-2 number, since 2×11864091289² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11864091259) 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, 5932045644 + 5932045645.

It is an arithmetic number, because the mean of its divisors is an integer number (5932045645).

Almost surely, 2^11864091289 is an apocalyptic number.

It is an amenable number.

11864091289 is a deficient number, since it is larger than the sum of its proper divisors (1).

11864091289 is an equidigital number, since it uses as much as digits as its factorization.

11864091289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 49.

The spelling of 11864091289 in words is "eleven billion, eight hundred sixty-four million, ninety-one thousand, two hundred eighty-nine".