11358187989 has 4 divisors (see below), whose sum is σ = 15144250656. Its totient is φ = 7572125324.

The previous prime is 11358187987. The next prime is 11358188027. The reversal of 11358187989 is 98978185311.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 11358187989 - 2¹ = 11358187987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11358187987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1893031329 + ... + 1893031334.

It is an arithmetic number, because the mean of its divisors is an integer number (3786062664).

Almost surely, 2^11358187989 is an apocalyptic number.

It is an amenable number.

11358187989 is a deficient number, since it is larger than the sum of its proper divisors (3786062667).

11358187989 is an equidigital number, since it uses as much as digits as its factorization.

11358187989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3786062666.

The product of its digits is 4354560, while the sum is 60.

The spelling of 11358187989 in words is "eleven billion, three hundred fifty-eight million, one hundred eighty-seven thousand, nine hundred eighty-nine".