422543642688 has 112 divisors (see below), whose sum is σ = 1242474487360. Its totient is φ = 140816765952.

The previous prime is 422543642683. The next prime is 422543642693. The reversal of 422543642688 is 886246345224.

422543642688 is a `hidden beast` number, since 4 + 2 + 254 + 364 + 26 + 8 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (422543642683) and next prime (422543642693).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (422543642683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8593020 + ... + 8642052.

Almost surely, 2^422543642688 is an apocalyptic number.

422543642688 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422543642688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (621237243680).

422543642688 is an abundant number, since it is smaller than the sum of its proper divisors (819930844672).

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

422543642688 is a wasteful number, since it uses less digits than its factorization.

422543642688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54041 (or 54025 counting only the distinct ones).

The product of its digits is 17694720, while the sum is 54.

The spelling of 422543642688 in words is "four hundred twenty-two billion, five hundred forty-three million, six hundred forty-two thousand, six hundred eighty-eight".