188634533952 has 112 divisors (see below), whose sum is σ = 530178264000. Its totient is φ = 58986381312.

The previous prime is 188634533947. The next prime is 188634533999. The reversal of 188634533952 is 259335436881.

188634533952 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 188634533892 and 188634533901.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 907924 + ... + 1096172.

It is an arithmetic number, because the mean of its divisors is an integer number (4733734500).

Almost surely, 2^188634533952 is an apocalyptic number.

188634533952 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 188634533952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265089132000).

188634533952 is an abundant number, since it is smaller than the sum of its proper divisors (341543730048).

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

188634533952 is a wasteful number, since it uses less digits than its factorization.

188634533952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188588 (or 188578 counting only the distinct ones).

The product of its digits is 18662400, while the sum is 57.

The spelling of 188634533952 in words is "one hundred eighty-eight billion, six hundred thirty-four million, five hundred thirty-three thousand, nine hundred fifty-two".