188698117005 has 12 divisors (see below), whose sum is σ = 327076736220. Its totient is φ = 100638995712.

The previous prime is 188698116983. The next prime is 188698117019. The reversal of 188698117005 is 500711896881.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 131440327209 + 57257789796 = 362547^2 + 239286^2 .

It is not a de Polignac number, because 188698117005 - 2⁷ = 188698116877 is a prime.

It is a super-2 number, since 2×188698117005² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2096645700 + ... + 2096645789.

It is an arithmetic number, because the mean of its divisors is an integer number (27256394685).

Almost surely, 2^188698117005 is an apocalyptic number.

188698117005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

188698117005 is a deficient number, since it is larger than the sum of its proper divisors (138378619215).

188698117005 is a wasteful number, since it uses less digits than its factorization.

188698117005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4193291500 (or 4193291497 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 54.

The spelling of 188698117005 in words is "one hundred eighty-eight billion, six hundred ninety-eight million, one hundred seventeen thousand, five".