445243688568 has 128 divisors (see below), whose sum is σ = 1414574784000. Its totient is φ = 127113235200.

The previous prime is 445243688567. The next prime is 445243688569. The reversal of 445243688568 is 865886342544.

445243688568 is a `hidden beast` number, since 4 + 4 + 5 + 2 + 4 + 3 + 68 + 8 + 568 = 666.

It is an interprime number because it is at equal distance from previous prime (445243688567) and next prime (445243688569).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445243688567) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1834743 + ... + 2063193.

It is an arithmetic number, because the mean of its divisors is an integer number (11051365500).

Almost surely, 2^445243688568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 445243688568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (707287392000).

445243688568 is an abundant number, since it is smaller than the sum of its proper divisors (969331095432).

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

445243688568 is a wasteful number, since it uses less digits than its factorization.

445243688568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229762 (or 229752 counting only the distinct ones).

The product of its digits is 176947200, while the sum is 63.

The spelling of 445243688568 in words is "four hundred forty-five billion, two hundred forty-three million, six hundred eighty-eight thousand, five hundred sixty-eight".