8428648228866 has 48 divisors (see below), whose sum is σ = 18518811611040. Its totient is φ = 2770078219200.

The previous prime is 8428648228843. The next prime is 8428648228873. The reversal of 8428648228866 is 6688228468248.

8428648228866 is a `hidden beast` number, since 8 + 4 + 2 + 8 + 6 + 482 + 2 + 88 + 66 = 666.

It is a super-2 number, since 2×8428648228866² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8428648228794 and 8428648228803.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2566441 + ... + 4841891.

It is an arithmetic number, because the mean of its divisors is an integer number (385808575230).

Almost surely, 2^{8428648228866} is an apocalyptic number.

8428648228866 is an abundant number, since it is smaller than the sum of its proper divisors (10090163382174).

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

8428648228866 is a wasteful number, since it uses less digits than its factorization.

8428648228866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2278351 (or 2278348 counting only the distinct ones).

The product of its digits is 905969664, while the sum is 72.

The spelling of 8428648228866 in words is "eight trillion, four hundred twenty-eight billion, six hundred forty-eight million, two hundred twenty-eight thousand, eight hundred sixty-six".