8242843554820 has 96 divisors (see below), whose sum is σ = 19830777523200. Its totient is φ = 2819269877760.

The previous prime is 8242843554817. The next prime is 8242843554839. The reversal of 8242843554820 is 284553482428.

It is a super-2 number, since 2×8242843554820² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 439444882 + ... + 439463638.

It is an arithmetic number, because the mean of its divisors is an integer number (206570599200).

Almost surely, 2^{8242843554820} is an apocalyptic number.

It is an amenable number.

8242843554820 is an abundant number, since it is smaller than the sum of its proper divisors (11587933968380).

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

8242843554820 is a wasteful number, since it uses less digits than its factorization.

8242843554820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26213 (or 26211 counting only the distinct ones).

The product of its (nonzero) digits is 19660800, while the sum is 55.

The spelling of 8242843554820 in words is "eight trillion, two hundred forty-two billion, eight hundred forty-three million, five hundred fifty-four thousand, eight hundred twenty".