188806739668 has 48 divisors (see below), whose sum is σ = 354206006784. Its totient is φ = 87744250880.

The previous prime is 188806739657. The next prime is 188806739677. The reversal of 188806739668 is 866937608881.

It is a junction number, because it is equal to n+sod(n) for n = 188806739597 and 188806739606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18377373 + ... + 18387643.

It is an arithmetic number, because the mean of its divisors is an integer number (7379291808).

Almost surely, 2^188806739668 is an apocalyptic number.

It is an amenable number.

188806739668 is a deficient number, since it is larger than the sum of its proper divisors (165399267116).

188806739668 is a wasteful number, since it uses less digits than its factorization.

188806739668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13632 (or 13630 counting only the distinct ones).

The product of its (nonzero) digits is 167215104, while the sum is 70.

The spelling of 188806739668 in words is "one hundred eighty-eight billion, eight hundred six million, seven hundred thirty-nine thousand, six hundred sixty-eight".