20441868684 has 12 divisors (see below), whose sum is σ = 47697693624. Its totient is φ = 6813956224.

The previous prime is 20441868673. The next prime is 20441868701. The reversal of 20441868684 is 48686814402.

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

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

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, 851744517 + ... + 851744540.

It is an arithmetic number, because the mean of its divisors is an integer number (3974807802).

Almost surely, 2^20441868684 is an apocalyptic number.

It is an amenable number.

20441868684 is an abundant number, since it is smaller than the sum of its proper divisors (27255824940).

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

20441868684 is a wasteful number, since it uses less digits than its factorization.

20441868684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703489064 (or 1703489062 counting only the distinct ones).

The product of its (nonzero) digits is 2359296, while the sum is 51.

The spelling of 20441868684 in words is "twenty billion, four hundred forty-one million, eight hundred sixty-eight thousand, six hundred eighty-four".