188140879872 has 504 divisors, whose sum is σ = 618888165840. Its totient is φ = 56693882880.

The previous prime is 188140879831. The next prime is 188140879873. The reversal of 188140879872 is 278978041881.

188140879872 is a `hidden beast` number, since 1 + 8 + 81 + 408 + 79 + 87 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (188140879873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 1051066279 + ... + 1051066457.

It is an arithmetic number, because the mean of its divisors is an integer number (1227952710).

Almost surely, 2^188140879872 is an apocalyptic number.

188140879872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 188140879872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309444082920).

188140879872 is an abundant number, since it is smaller than the sum of its proper divisors (430747285968).

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

188140879872 is an frugal number, since it uses more digits than its factorization.

188140879872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 195 counting only the distinct ones).

The product of its (nonzero) digits is 14450688, while the sum is 63.

The spelling of 188140879872 in words is "one hundred eighty-eight billion, one hundred forty million, eight hundred seventy-nine thousand, eight hundred seventy-two".