188790500500 has 48 divisors (see below), whose sum is σ = 471221097984. Its totient is φ = 64728170400.

The previous prime is 188790500477. The next prime is 188790500501. The reversal of 188790500500 is 5005097881.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188790500501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26966572 + ... + 26973571.

It is an arithmetic number, because the mean of its divisors is an integer number (9817106208).

Almost surely, 2^188790500500 is an apocalyptic number.

188790500500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

188790500500 is an abundant number, since it is smaller than the sum of its proper divisors (282430597484).

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

188790500500 is a wasteful number, since it uses less digits than its factorization.

188790500500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53940169 (or 53940157 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 43.

The spelling of 188790500500 in words is "one hundred eighty-eight billion, seven hundred ninety million, five hundred thousand, five hundred".