2188916089 has 4 divisors (see below), whose sum is σ = 2215288656. Its totient is φ = 2162543524.

The previous prime is 2188916087. The next prime is 2188916111. The reversal of 2188916089 is 9806198812.

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 2188916089 - 2¹ = 2188916087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2188916087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13186159 + ... + 13186324.

It is an arithmetic number, because the mean of its divisors is an integer number (553822164).

Almost surely, 2^2188916089 is an apocalyptic number.

It is an amenable number.

2188916089 is a deficient number, since it is larger than the sum of its proper divisors (26372567).

2188916089 is an equidigital number, since it uses as much as digits as its factorization.

2188916089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26372566.

The product of its (nonzero) digits is 497664, while the sum is 52.

The square root of 2188916089 is about 46785.8535136423. The cubic root of 2188916089 is about 1298.4035806123.

The spelling of 2188916089 in words is "two billion, one hundred eighty-eight million, nine hundred sixteen thousand, eighty-nine".