20852728483764 has 48 divisors (see below), whose sum is σ = 49541174807040. Its totient is φ = 6824794608480.

The previous prime is 20852728483739. The next prime is 20852728483793. The reversal of 20852728483764 is 46738482725802.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20852728483695 and 20852728483704.

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, 17311002 + ... + 18476369.

It is an arithmetic number, because the mean of its divisors is an integer number (1032107808480).

Almost surely, 2^{20852728483764} is an apocalyptic number.

It is an amenable number.

20852728483764 is an abundant number, since it is smaller than the sum of its proper divisors (28688446323276).

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

20852728483764 is a wasteful number, since it uses less digits than its factorization.

20852728483764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35788260 (or 35788258 counting only the distinct ones).

The product of its (nonzero) digits is 289013760, while the sum is 66.

The spelling of 20852728483764 in words is "twenty trillion, eight hundred fifty-two billion, seven hundred twenty-eight million, four hundred eighty-three thousand, seven hundred sixty-four".