20187305352792 has 96 divisors (see below), whose sum is σ = 55076117896800. Its totient is φ = 6679609953792.

The previous prime is 20187305352757. The next prime is 20187305352821. The reversal of 20187305352792 is 29725350378102.

20187305352792 is a `hidden beast` number, since 2 + 0 + 1 + 8 + 7 + 30 + 535 + 2 + 79 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 218036893 + ... + 218129459.

It is an arithmetic number, because the mean of its divisors is an integer number (573709561425).

Almost surely, 2^{20187305352792} 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 20187305352792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27538058948400).

20187305352792 is an abundant number, since it is smaller than the sum of its proper divisors (34888812544008).

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

20187305352792 is a wasteful number, since it uses less digits than its factorization.

20187305352792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114825 (or 114818 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 54.

The spelling of 20187305352792 in words is "twenty trillion, one hundred eighty-seven billion, three hundred five million, three hundred fifty-two thousand, seven hundred ninety-two".