20442799882068 has 24 divisors (see below), whose sum is σ = 47716297704768. Its totient is φ = 6811919296896.

The previous prime is 20442799882067. The next prime is 20442799882073. The reversal of 20442799882068 is 86028899724402.

It is a junction number, because it is equal to n+sod(n) for n = 20442799881993 and 20442799882011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20442799882067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293380021 + ... + 293449692.

It is an arithmetic number, because the mean of its divisors is an integer number (1988179071032).

Almost surely, 2^{20442799882068} is an apocalyptic number.

It is an amenable number.

20442799882068 is an abundant number, since it is smaller than the sum of its proper divisors (27273497822700).

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

20442799882068 is a wasteful number, since it uses less digits than its factorization.

20442799882068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586832623 (or 586832621 counting only the distinct ones).

The product of its (nonzero) digits is 222953472, while the sum is 69.

The spelling of 20442799882068 in words is "twenty trillion, four hundred forty-two billion, seven hundred ninety-nine million, eight hundred eighty-two thousand, sixty-eight".