640482350112 has 144 divisors (see below), whose sum is σ = 1988201648160. Its totient is φ = 193963392000.

The previous prime is 640482350111. The next prime is 640482350129. The reversal of 640482350112 is 211053284046.

It is a happy number.

640482350112 is a `hidden beast` number, since 6 + 404 + 8 + 235 + 0 + 1 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (640482350111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5034487 + ... + 5160137.

It is an arithmetic number, because the mean of its divisors is an integer number (13806955890).

Almost surely, 2^640482350112 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 640482350112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (994100824080).

640482350112 is an abundant number, since it is smaller than the sum of its proper divisors (1347719298048).

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

640482350112 is a wasteful number, since it uses less digits than its factorization.

640482350112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127287 (or 127276 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 640482350112 in words is "six hundred forty billion, four hundred eighty-two million, three hundred fifty thousand, one hundred twelve".