427668358087872 has 84 divisors (see below), whose sum is σ = 1337273596995336. Its totient is φ = 129596472145920.

The previous prime is 427668358087853. The next prime is 427668358087877. The reversal of 427668358087872 is 278780853866724.

427668358087872 is a `hidden beast` number, since 4 + 2 + 76 + 68 + 358 + 0 + 8 + 78 + 72 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 427668358087791 and 427668358087800.

It is not an unprimeable number, because it can be changed into a prime (427668358087877) by changing a digit.

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, 33749074953 + ... + 33749087624.

It is an arithmetic number, because the mean of its divisors is an integer number (15919923773754).

Almost surely, 2^{427668358087872} is an apocalyptic number.

It is an amenable number.

427668358087872 is an abundant number, since it is smaller than the sum of its proper divisors (909605238907464).

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

427668358087872 is a wasteful number, since it uses less digits than its factorization.

427668358087872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67498162606 (or 67498162593 counting only the distinct ones).

The product of its (nonzero) digits is 12138577920, while the sum is 81.

The spelling of 427668358087872 in words is "four hundred twenty-seven trillion, six hundred sixty-eight billion, three hundred fifty-eight million, eighty-seven thousand, eight hundred seventy-two".