188443528548 has 144 divisors (see below), whose sum is σ = 510262411008. Its totient is φ = 53669952000.

The previous prime is 188443528547. The next prime is 188443528571. The reversal of 188443528548 is 845825344881.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 188443528491 and 188443528500.

It is not an unprimeable number, because it can be changed into a prime (188443528541) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30934983 + ... + 30941073.

Almost surely, 2^188443528548 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 188443528548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255131205504).

188443528548 is an abundant number, since it is smaller than the sum of its proper divisors (321818882460).

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

188443528548 is a wasteful number, since it uses less digits than its factorization.

188443528548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6954 (or 6935 counting only the distinct ones).

The product of its digits is 39321600, while the sum is 60.

The spelling of 188443528548 in words is "one hundred eighty-eight billion, four hundred forty-three million, five hundred twenty-eight thousand, five hundred forty-eight".