11147385989 has 2 divisors, whose sum is σ = 11147385990. Its totient is φ = 11147385988.

The previous prime is 11147385947. The next prime is 11147386001. The reversal of 11147385989 is 98958374111.

It is a happy number.

11147385989 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., 7283769025 + 3863616964 = 85345^2 + 62158^2 .

It is a cyclic number.

It is not a de Polignac number, because 11147385989 - 2¹² = 11147381893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11147385089) 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, 5573692994 + 5573692995.

It is an arithmetic number, because the mean of its divisors is an integer number (5573692995).

Almost surely, 2^11147385989 is an apocalyptic number.

It is an amenable number.

11147385989 is a deficient number, since it is larger than the sum of its proper divisors (1).

11147385989 is an equidigital number, since it uses as much as digits as its factorization.

11147385989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2177280, while the sum is 56.

The spelling of 11147385989 in words is "eleven billion, one hundred forty-seven million, three hundred eighty-five thousand, nine hundred eighty-nine".