5621820068844 has 72 divisors (see below), whose sum is σ = 16241510824448. Its totient is φ = 1606165342560.

The previous prime is 5621820068783. The next prime is 5621820068869. The reversal of 5621820068844 is 4488600281265.

5621820068844 is a `hidden beast` number, since 5 + 621 + 8 + 2 + 0 + 0 + 6 + 8 + 8 + 4 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5552559 + ... + 6486489.

Almost surely, 2^{5621820068844} is an apocalyptic number.

It is an amenable number.

5621820068844 is an abundant number, since it is smaller than the sum of its proper divisors (10619690755604).

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

5621820068844 is a wasteful number, since it uses less digits than its factorization.

5621820068844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957835 (or 957830 counting only the distinct ones).

The product of its (nonzero) digits is 5898240, while the sum is 54.

The spelling of 5621820068844 in words is "five trillion, six hundred twenty-one billion, eight hundred twenty million, sixty-eight thousand, eight hundred forty-four".