188385967380 has 48 divisors (see below), whose sum is σ = 568056150144. Its totient is φ = 46371930240.

The previous prime is 188385967373. The next prime is 188385967459. The reversal of 188385967380 is 83769583881.

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, 120759456 + ... + 120761015.

It is an arithmetic number, because the mean of its divisors is an integer number (11834503128).

Almost surely, 2^188385967380 is an apocalyptic number.

188385967380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

188385967380 is an abundant number, since it is smaller than the sum of its proper divisors (379670182764).

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

188385967380 is a wasteful number, since it uses less digits than its factorization.

188385967380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241520496 (or 241520494 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 66.

The spelling of 188385967380 in words is "one hundred eighty-eight billion, three hundred eighty-five million, nine hundred sixty-seven thousand, three hundred eighty".