188872061889 has 16 divisors (see below), whose sum is σ = 288829272960. Its totient is φ = 107542807680.

The previous prime is 188872061843. The next prime is 188872061921. The reversal of 188872061889 is 988160278881.

It is not a de Polignac number, because 188872061889 - 2¹² = 188872057793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (188872061839) 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 15 ways as a sum of consecutive naturals, for example, 15997494 + ... + 16009295.

It is an arithmetic number, because the mean of its divisors is an integer number (18051829560).

Almost surely, 2^188872061889 is an apocalyptic number.

It is an amenable number.

188872061889 is a deficient number, since it is larger than the sum of its proper divisors (99957211071).

188872061889 is a wasteful number, since it uses less digits than its factorization.

188872061889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32007080.

The product of its (nonzero) digits is 24772608, while the sum is 66.

The spelling of 188872061889 in words is "one hundred eighty-eight billion, eight hundred seventy-two million, sixty-one thousand, eight hundred eighty-nine".