8621853384456 has 160 divisors (see below), whose sum is σ = 26497497078360. Its totient is φ = 2602823528448.

The previous prime is 8621853384439. The next prime is 8621853384493. The reversal of 8621853384456 is 6544833581268.

8621853384456 is a `hidden beast` number, since 8 + 6 + 2 + 1 + 8 + 533 + 8 + 44 + 56 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4746585539556 + 3875267844900 = 2178666^2 + 1968570^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8621853384393 and 8621853384402.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 9209065 + ... + 10102008.

Almost surely, 2^{8621853384456} is an apocalyptic number.

It is an amenable number.

8621853384456 is an abundant number, since it is smaller than the sum of its proper divisors (17875643693904).

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

8621853384456 is a wasteful number, since it uses less digits than its factorization.

8621853384456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19311157 (or 19311144 counting only the distinct ones).

The product of its digits is 132710400, while the sum is 63.

The spelling of 8621853384456 in words is "eight trillion, six hundred twenty-one billion, eight hundred fifty-three million, three hundred eighty-four thousand, four hundred fifty-six".