21028320000576 has 140 divisors (see below), whose sum is σ = 71239460759808. Its totient is φ = 6008091418368.

The previous prime is 21028320000557. The next prime is 21028320000601. The reversal of 21028320000576 is 67500002382012.

21028320000576 is a `hidden beast` number, since 2 + 1 + 0 + 2 + 83 + 2 + 0 + 0 + 0 + 0 + 576 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 21028320000576.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 289705776 + ... + 289778351.

Almost surely, 2^{21028320000576} is an apocalyptic number.

It is an amenable number.

21028320000576 is an abundant number, since it is smaller than the sum of its proper divisors (50211140759232).

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

21028320000576 is an equidigital number, since it uses as much as digits as its factorization.

21028320000576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579484158 (or 579484139 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

Adding to 21028320000576 its reverse (67500002382012), we get a palindrome (88528322382588).

The spelling of 21028320000576 in words is "twenty-one trillion, twenty-eight billion, three hundred twenty million, five hundred seventy-six", and thus it is an aban number.