188789381001 has 45 divisors (see below), whose sum is σ = 295764740531. Its totient is φ = 116042516928.

The previous prime is 188789380999. The next prime is 188789381017. The reversal of 188789381001 is 100183987881.

The square root of 188789381001 is 434499.

It is a perfect power (a square), and thus also a powerful number.

188789381001 is a `hidden beast` number, since 188 + 7 + 89 + 381 + 0 + 0 + 1 = 666.

It can be written as a sum of positive squares in 7 ways, for example, as 142918022025 + 45871358976 = 378045^2 + 214176^2 .

It is not a de Polignac number, because 188789381001 - 2¹ = 188789380999 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (188789381201) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 220290565 + ... + 220291421.

Almost surely, 2^188789381001 is an apocalyptic number.

188789381001 is the 434499-th square number.

188789381001 is the 217250-th centered octagonal number.

It is an amenable number.

188789381001 is a deficient number, since it is larger than the sum of its proper divisors (106975359530).

188789381001 is an frugal number, since it uses more digits than its factorization.

188789381001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1772 (or 873 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 54.

The spelling of 188789381001 in words is "one hundred eighty-eight billion, seven hundred eighty-nine million, three hundred eighty-one thousand, one".