20804684226 has 32 divisors (see below), whose sum is σ = 42962227200. Its totient is φ = 6709529040.

The previous prime is 20804684221. The next prime is 20804684237. The reversal of 20804684226 is 62248640802.

It is not an unprimeable number, because it can be changed into a prime (20804684221) 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, 903565 + ... + 926303.

It is an arithmetic number, because the mean of its divisors is an integer number (1342569600).

Almost surely, 2^20804684226 is an apocalyptic number.

20804684226 is an abundant number, since it is smaller than the sum of its proper divisors (22157542974).

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

20804684226 is a wasteful number, since it uses less digits than its factorization.

20804684226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27694.

The product of its (nonzero) digits is 294912, while the sum is 42.

The spelling of 20804684226 in words is "twenty billion, eight hundred four million, six hundred eighty-four thousand, two hundred twenty-six".