28020622204444 has 24 divisors (see below), whose sum is σ = 49283511788000. Its totient is φ = 13939621724160.

The previous prime is 28020622204441. The next prime is 28020622204573. The reversal of 28020622204444 is 44440222602082.

It is a junction number, because it is equal to n+sod(n) for n = 28020622204397 and 28020622204406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28020622204441) 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, 41542204 + ... + 42211324.

Almost surely, 2^{28020622204444} is an apocalyptic number.

It is an amenable number.

28020622204444 is a deficient number, since it is larger than the sum of its proper divisors (21262889583556).

28020622204444 is a wasteful number, since it uses less digits than its factorization.

28020622204444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721933 (or 721931 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 40.

The spelling of 28020622204444 in words is "twenty-eight trillion, twenty billion, six hundred twenty-two million, two hundred four thousand, four hundred forty-four".