188940006528 has 512 divisors, whose sum is σ = 634498099200. Its totient is φ = 48492380160.

The previous prime is 188940006523. The next prime is 188940006547. The reversal of 188940006528 is 825600049881.

It is a super-2 number, since 2×188940006528² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (188940006523) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 232971243 + ... + 232972053.

It is an arithmetic number, because the mean of its divisors is an integer number (1239254100).

Almost surely, 2^188940006528 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 188940006528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (317249049600).

188940006528 is an abundant number, since it is smaller than the sum of its proper divisors (445558092672).

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

188940006528 is a wasteful number, since it uses less digits than its factorization.

188940006528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020 (or 1008 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 51.

The spelling of 188940006528 in words is "one hundred eighty-eight billion, nine hundred forty million, six thousand, five hundred twenty-eight".