11549288089 has 2 divisors, whose sum is σ = 11549288090. Its totient is φ = 11549288088.

The previous prime is 11549288081. The next prime is 11549288099. The reversal of 11549288089 is 98088294511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6160994064 + 5388294025 = 78492^2 + 73405^2 .

It is a cyclic number.

It is not a de Polignac number, because 11549288089 - 2³ = 11549288081 is a prime.

It is not a weakly prime, because it can be changed into another prime (11549288081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5774644044 + 5774644045.

It is an arithmetic number, because the mean of its divisors is an integer number (5774644045).

Almost surely, 2^11549288089 is an apocalyptic number.

It is an amenable number.

11549288089 is a deficient number, since it is larger than the sum of its proper divisors (1).

11549288089 is an equidigital number, since it uses as much as digits as its factorization.

11549288089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1658880, while the sum is 55.

The spelling of 11549288089 in words is "eleven billion, five hundred forty-nine million, two hundred eighty-eight thousand, eighty-nine".