188623723568 has 20 divisors (see below), whose sum is σ = 417666816720. Its totient is φ = 80838738624.

The previous prime is 188623723559. The next prime is 188623723571. The reversal of 188623723568 is 865327326881.

It is a happy number.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 842070083 + ... + 842070306.

It is an arithmetic number, because the mean of its divisors is an integer number (20883340836).

Almost surely, 2^188623723568 is an apocalyptic number.

It is an amenable number.

188623723568 is an abundant number, since it is smaller than the sum of its proper divisors (229043093152).

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

188623723568 is a wasteful number, since it uses less digits than its factorization.

188623723568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684140404 (or 1684140398 counting only the distinct ones).

The product of its digits is 23224320, while the sum is 59.

The spelling of 188623723568 in words is "one hundred eighty-eight billion, six hundred twenty-three million, seven hundred twenty-three thousand, five hundred sixty-eight".