8062581985640 has 256 divisors, whose sum is σ = 22721745715200. Its totient is φ = 2506639389696.

The previous prime is 8062581985607. The next prime is 8062581985657. The reversal of 8062581985640 is 465891852608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 319335497 + ... + 319360743.

It is an arithmetic number, because the mean of its divisors is an integer number (88756819200).

Almost surely, 2^{8062581985640} 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 8062581985640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11360872857600).

8062581985640 is an abundant number, since it is smaller than the sum of its proper divisors (14659163729560).

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

8062581985640 is a wasteful number, since it uses less digits than its factorization.

8062581985640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26824 (or 26820 counting only the distinct ones).

The product of its (nonzero) digits is 33177600, while the sum is 62.

The spelling of 8062581985640 in words is "eight trillion, sixty-two billion, five hundred eighty-one million, nine hundred eighty-five thousand, six hundred forty".