16888540189 has 4 divisors (see below), whose sum is σ = 17433331840. Its totient is φ = 16343748540.

The previous prime is 16888540157. The next prime is 16888540199. The reversal of 16888540189 is 98104588861.

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 16888540189 - 2⁵ = 16888540157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16888540139) 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, 272395779 + ... + 272395840.

It is an arithmetic number, because the mean of its divisors is an integer number (4358332960).

Almost surely, 2^16888540189 is an apocalyptic number.

It is an amenable number.

16888540189 is a deficient number, since it is larger than the sum of its proper divisors (544791651).

16888540189 is an equidigital number, since it uses as much as digits as its factorization.

16888540189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544791650.

The product of its (nonzero) digits is 4423680, while the sum is 58.

The spelling of 16888540189 in words is "sixteen billion, eight hundred eighty-eight million, five hundred forty thousand, one hundred eighty-nine".