20844806286804 has 12 divisors (see below), whose sum is σ = 48637881335904. Its totient is φ = 6948268762264.

The previous prime is 20844806286769. The next prime is 20844806286817. The reversal of 20844806286804 is 40868260844802.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 868533595272 + ... + 868533595295.

It is an arithmetic number, because the mean of its divisors is an integer number (4053156777992).

Almost surely, 2^{20844806286804} is an apocalyptic number.

It is an amenable number.

20844806286804 is an abundant number, since it is smaller than the sum of its proper divisors (27793075049100).

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

20844806286804 is a wasteful number, since it uses less digits than its factorization.

20844806286804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1737067190574 (or 1737067190572 counting only the distinct ones).

The product of its (nonzero) digits is 37748736, while the sum is 60.

The spelling of 20844806286804 in words is "twenty trillion, eight hundred forty-four billion, eight hundred six million, two hundred eighty-six thousand, eight hundred four".