11838040289 has 2 divisors, whose sum is σ = 11838040290. Its totient is φ = 11838040288.

The previous prime is 11838040283. The next prime is 11838040351. The reversal of 11838040289 is 98204083811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11811342400 + 26697889 = 108680^2 + 5167^2 .

It is a cyclic number.

It is not a de Polignac number, because 11838040289 - 2²⁰ = 11836991713 is a prime.

It is not a weakly prime, because it can be changed into another prime (11838040283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5919020144 + 5919020145.

It is an arithmetic number, because the mean of its divisors is an integer number (5919020145).

Almost surely, 2^11838040289 is an apocalyptic number.

It is an amenable number.

11838040289 is a deficient number, since it is larger than the sum of its proper divisors (1).

11838040289 is an equidigital number, since it uses as much as digits as its factorization.

11838040289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 110592, while the sum is 44.

The spelling of 11838040289 in words is "eleven billion, eight hundred thirty-eight million, forty thousand, two hundred eighty-nine".