188552172039 has 48 divisors (see below), whose sum is σ = 319177272960. Its totient is φ = 97905339840.

The previous prime is 188552172037. The next prime is 188552172043. The reversal of 188552172039 is 930271255881.

It is not a de Polignac number, because 188552172039 - 2¹ = 188552172037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 188552171982 and 188552172000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188552172037) 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, 3757237 + ... + 3807089.

It is an arithmetic number, because the mean of its divisors is an integer number (6649526520).

Almost surely, 2^188552172039 is an apocalyptic number.

188552172039 is a deficient number, since it is larger than the sum of its proper divisors (130625100921).

188552172039 is a wasteful number, since it uses less digits than its factorization.

188552172039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52220 (or 52213 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 51.

The spelling of 188552172039 in words is "one hundred eighty-eight billion, five hundred fifty-two million, one hundred seventy-two thousand, thirty-nine".