187648816688 has 20 divisors (see below), whose sum is σ = 363763958688. Its totient is φ = 93774246720.

The previous prime is 187648816681. The next prime is 187648816697. The reversal of 187648816688 is 886618846781.

It is not an unprimeable number, because it can be changed into a prime (187648816681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3104231 + ... + 3164102.

Almost surely, 2^187648816688 is an apocalyptic number.

It is an amenable number.

187648816688 is a deficient number, since it is larger than the sum of its proper divisors (176115142000).

187648816688 is a wasteful number, since it uses less digits than its factorization.

187648816688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6270212 (or 6270206 counting only the distinct ones).

The product of its digits is 198180864, while the sum is 71.

The spelling of 187648816688 in words is "one hundred eighty-seven billion, six hundred forty-eight million, eight hundred sixteen thousand, six hundred eighty-eight".