188386720002 has 64 divisors (see below), whose sum is σ = 450998352000. Its totient is φ = 57944787264.

The previous prime is 188386719979. The next prime is 188386720007. The reversal of 188386720002 is 200027683881.

188386720002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×188386720002² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 188386720002.

It is not an unprimeable number, because it can be changed into a prime (188386720007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2017524 + ... + 2108832.

It is an arithmetic number, because the mean of its divisors is an integer number (7046849250).

Almost surely, 2^188386720002 is an apocalyptic number.

188386720002 is an abundant number, since it is smaller than the sum of its proper divisors (262611631998).

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

188386720002 is a wasteful number, since it uses less digits than its factorization.

188386720002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94272 (or 94266 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The spelling of 188386720002 in words is "one hundred eighty-eight billion, three hundred eighty-six million, seven hundred twenty thousand, two".