20188628592 has 80 divisors (see below), whose sum is σ = 57044348928. Its totient is φ = 6101731840.

The previous prime is 20188628591. The next prime is 20188628597. The reversal of 20188628592 is 29582688102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20188628591) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152308 + ... + 252140.

Almost surely, 2^20188628592 is an apocalyptic number.

20188628592 is a gapful number since it is divisible by the number (22) 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 20188628592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28522174464).

20188628592 is an abundant number, since it is smaller than the sum of its proper divisors (36855720336).

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

20188628592 is a wasteful number, since it uses less digits than its factorization.

20188628592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100238 (or 100232 counting only the distinct ones).

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

The spelling of 20188628592 in words is "twenty billion, one hundred eighty-eight million, six hundred twenty-eight thousand, five hundred ninety-two".