188386933768 has 24 divisors (see below), whose sum is σ = 388256130990. Its totient is φ = 85630424000.

The previous prime is 188386933759. The next prime is 188386933837. The reversal of 188386933768 is 867339683881.

It can be written as a sum of positive squares in only one way, i.e., 96893993284 + 91492940484 = 311278^2 + 302478^2 .

It is a junction number, because it is equal to n+sod(n) for n = 188386933697 and 188386933706.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 97306333 + ... + 97308268.

Almost surely, 2^188386933768 is an apocalyptic number.

It is an amenable number.

188386933768 is an abundant number, since it is smaller than the sum of its proper divisors (199869197222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

188386933768 is a wasteful number, since it uses less digits than its factorization.

188386933768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194614629 (or 194614614 counting only the distinct ones).

The product of its digits is 250822656, while the sum is 70.

The spelling of 188386933768 in words is "one hundred eighty-eight billion, three hundred eighty-six million, nine hundred thirty-three thousand, seven hundred sixty-eight".