20894324896 has 12 divisors (see below), whose sum is σ = 41135702202. Its totient is φ = 10447162432.

The previous prime is 20894324881. The next prime is 20894324897. The reversal of 20894324896 is 69842349802.

It can be written as a sum of positive squares in only one way, i.e., 15560067600 + 5334257296 = 124740^2 + 73036^2 .

It is not an unprimeable number, because it can be changed into a prime (20894324897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326473795 + ... + 326473858.

Almost surely, 2^20894324896 is an apocalyptic number.

It is an amenable number.

20894324896 is a deficient number, since it is larger than the sum of its proper divisors (20241377306).

20894324896 is an equidigital number, since it uses as much as digits as its factorization.

20894324896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652947663 (or 652947655 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 55.

The spelling of 20894324896 in words is "twenty billion, eight hundred ninety-four million, three hundred twenty-four thousand, eight hundred ninety-six".