11388810189 has 8 divisors (see below), whose sum is σ = 15185855520. Its totient is φ = 7592152496.

The previous prime is 11388810161. The next prime is 11388810211. The reversal of 11388810189 is 98101888311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11388810189 - 2⁸ = 11388809933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11388810889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19527 + ... + 152180.

It is an arithmetic number, because the mean of its divisors is an integer number (1898231940).

Almost surely, 2^11388810189 is an apocalyptic number.

It is an amenable number.

11388810189 is a deficient number, since it is larger than the sum of its proper divisors (3797045331).

11388810189 is a wasteful number, since it uses less digits than its factorization.

11388810189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193819.

The product of its (nonzero) digits is 110592, while the sum is 48.

The spelling of 11388810189 in words is "eleven billion, three hundred eighty-eight million, eight hundred ten thousand, one hundred eighty-nine".