188004351089 has 4 divisors (see below), whose sum is σ = 188412170100. Its totient is φ = 187596532080.

The previous prime is 188004351079. The next prime is 188004351167. The reversal of 188004351089 is 980153400881.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 980153400881 = 19 ⋅51587021099.

It can be written as a sum of positive squares in 2 ways, for example, as 55522910689 + 132481440400 = 235633^2 + 363980^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-188004351089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (188004351079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203908814 + ... + 203909735.

It is an arithmetic number, because the mean of its divisors is an integer number (47103042525).

Almost surely, 2^188004351089 is an apocalyptic number.

It is an amenable number.

188004351089 is a deficient number, since it is larger than the sum of its proper divisors (407819011).

188004351089 is an equidigital number, since it uses as much as digits as its factorization.

188004351089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407819010.

The product of its (nonzero) digits is 276480, while the sum is 47.

The spelling of 188004351089 in words is "one hundred eighty-eight billion, four million, three hundred fifty-one thousand, eighty-nine".