82510441080905 has 4 divisors (see below), whose sum is σ = 99012529297092. Its totient is φ = 66008352864720.

The previous prime is 82510441080887. The next prime is 82510441080967. The reversal of 82510441080905 is 50908014401528.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19785735949456 + 62724705131449 = 4448116^2 + 7919893^2 .

It is not a de Polignac number, because 82510441080905 - 2⁶ = 82510441080841 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82510441080905.

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 3 ways as a sum of consecutive naturals, for example, 8251044108086 + ... + 8251044108095.

It is an arithmetic number, because the mean of its divisors is an integer number (24753132324273).

Almost surely, 2^{82510441080905} is an apocalyptic number.

It is an amenable number.

82510441080905 is a deficient number, since it is larger than the sum of its proper divisors (16502088216187).

82510441080905 is a wasteful number, since it uses less digits than its factorization.

82510441080905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16502088216186.

The product of its (nonzero) digits is 460800, while the sum is 47.

The spelling of 82510441080905 in words is "eighty-two trillion, five hundred ten billion, four hundred forty-one million, eighty thousand, nine hundred five".