842806975680 has 84 divisors (see below), whose sum is σ = 2898904836672. Its totient is φ = 224748526080.

The previous prime is 842806975669. The next prime is 842806975721. The reversal of 842806975680 is 86579608248.

842806975680 is a `hidden beast` number, since 8 + 4 + 2 + 8 + 0 + 69 + 7 + 568 + 0 = 666.

It is a super-2 number, since 2×842806975680² (a number of 25 digits) contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 146317776 + ... + 146323535.

Almost surely, 2^842806975680 is an apocalyptic number.

842806975680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

842806975680 is an abundant number, since it is smaller than the sum of its proper divisors (2056097860992).

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

842806975680 is a wasteful number, since it uses less digits than its factorization.

842806975680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292641334 (or 292641321 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 63.

The spelling of 842806975680 in words is "eight hundred forty-two billion, eight hundred six million, nine hundred seventy-five thousand, six hundred eighty".