188581412912 has 40 divisors (see below), whose sum is σ = 369982048800. Its totient is φ = 93107427840.

The previous prime is 188581412807. The next prime is 188581412917. The reversal of 188581412912 is 219214185881.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (188581412917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 411212 + ... + 739092.

It is an arithmetic number, because the mean of its divisors is an integer number (9249551220).

Almost surely, 2^188581412912 is an apocalyptic number.

It is an amenable number.

188581412912 is a deficient number, since it is larger than the sum of its proper divisors (181400635888).

188581412912 is a wasteful number, since it uses less digits than its factorization.

188581412912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328341 (or 328335 counting only the distinct ones).

The product of its digits is 368640, while the sum is 50.

The spelling of 188581412912 in words is "one hundred eighty-eight billion, five hundred eighty-one million, four hundred twelve thousand, nine hundred twelve".