188445134652 has 72 divisors (see below), whose sum is σ = 460051875024. Its totient is φ = 60031969536.

The previous prime is 188445134651. The next prime is 188445134671. The reversal of 188445134652 is 256431544881.

188445134652 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 2×188445134652² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 188445134595 and 188445134604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188445134651) 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 23 ways as a sum of consecutive naturals, for example, 7687888 + ... + 7712360.

Almost surely, 2^188445134652 is an apocalyptic number.

188445134652 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 188445134652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230025937512).

188445134652 is an abundant number, since it is smaller than the sum of its proper divisors (271606740372).

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

188445134652 is a wasteful number, since it uses less digits than its factorization.

188445134652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25739 (or 25714 counting only the distinct ones).

The product of its digits is 3686400, while the sum is 51.

The spelling of 188445134652 in words is "one hundred eighty-eight billion, four hundred forty-five million, one hundred thirty-four thousand, six hundred fifty-two".