188442251932 has 48 divisors (see below), whose sum is σ = 370452539520. Its totient is φ = 83120385600.

The previous prime is 188442251929. The next prime is 188442251941. The reversal of 188442251932 is 239152244881.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 464307 + ... + 769717.

It is an arithmetic number, because the mean of its divisors is an integer number (7717761240).

Almost surely, 2^188442251932 is an apocalyptic number.

It is an amenable number.

188442251932 is a deficient number, since it is larger than the sum of its proper divisors (182010287588).

188442251932 is a wasteful number, since it uses less digits than its factorization.

188442251932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305842 (or 305840 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 49.

The spelling of 188442251932 in words is "one hundred eighty-eight billion, four hundred forty-two million, two hundred fifty-one thousand, nine hundred thirty-two".