82581158688 has 96 divisors (see below), whose sum is σ = 249694470144. Its totient is φ = 23408808192.

The previous prime is 82581158683. The next prime is 82581158719. The reversal of 82581158688 is 88685118528.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (82581158683) 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 15 ways as a sum of consecutive naturals, for example, 398470 + ... + 569157.

It is an arithmetic number, because the mean of its divisors is an integer number (2600984064).

Almost surely, 2^82581158688 is an apocalyptic number.

It is an amenable number.

82581158688 is an abundant number, since it is smaller than the sum of its proper divisors (167113311456).

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

82581158688 is a wasteful number, since it uses less digits than its factorization.

82581158688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967774 (or 967766 counting only the distinct ones).

The product of its digits is 9830400, while the sum is 60.

The spelling of 82581158688 in words is "eighty-two billion, five hundred eighty-one million, one hundred fifty-eight thousand, six hundred eighty-eight".