188895703138 has 16 divisors (see below), whose sum is σ = 291013618104. Its totient is φ = 91891376640.

The previous prime is 188895703123. The next prime is 188895703141. The reversal of 188895703138 is 831307598881.

188895703138 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 188544403089 + 351300049 = 434217^2 + 18743^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2669106 + ... + 2738962.

Almost surely, 2^188895703138 is an apocalyptic number.

188895703138 is a deficient number, since it is larger than the sum of its proper divisors (102117914966).

188895703138 is a wasteful number, since it uses less digits than its factorization.

188895703138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106437.

The product of its (nonzero) digits is 11612160, while the sum is 61.

The spelling of 188895703138 in words is "one hundred eighty-eight billion, eight hundred ninety-five million, seven hundred three thousand, one hundred thirty-eight".