11159918189 has 4 divisors (see below), whose sum is σ = 12754192224. Its totient is φ = 9565644156.

The previous prime is 11159918177. The next prime is 11159918201. The reversal of 11159918189 is 98181995111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (11159918177) and next prime (11159918201).

It is a cyclic number.

It is not a de Polignac number, because 11159918189 - 2⁸ = 11159917933 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11159918189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11159918089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 797137007 + ... + 797137020.

It is an arithmetic number, because the mean of its divisors is an integer number (3188548056).

Almost surely, 2^11159918189 is an apocalyptic number.

It is an amenable number.

11159918189 is a deficient number, since it is larger than the sum of its proper divisors (1594274035).

11159918189 is an equidigital number, since it uses as much as digits as its factorization.

11159918189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1594274034.

The product of its digits is 233280, while the sum is 53.

The spelling of 11159918189 in words is "eleven billion, one hundred fifty-nine million, nine hundred eighteen thousand, one hundred eighty-nine".