188453951328 has 48 divisors (see below), whose sum is σ = 494752221936. Its totient is φ = 62810288640.

The previous prime is 188453951327. The next prime is 188453951347. The reversal of 188453951328 is 823159354881.

188453951328 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×188453951328² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188453951327) 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 7 ways as a sum of consecutive naturals, for example, 696250 + ... + 928262.

It is an arithmetic number, because the mean of its divisors is an integer number (10307337957).

Almost surely, 2^188453951328 is an apocalyptic number.

It is an amenable number.

188453951328 is an abundant number, since it is smaller than the sum of its proper divisors (306298270608).

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

188453951328 is a wasteful number, since it uses less digits than its factorization.

188453951328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240487 (or 240479 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 57.

The spelling of 188453951328 in words is "one hundred eighty-eight billion, four hundred fifty-three million, nine hundred fifty-one thousand, three hundred twenty-eight".