82045639185 has 32 divisors (see below), whose sum is σ = 132347523072. Its totient is φ = 43399722240.

The previous prime is 82045639163. The next prime is 82045639187. The reversal of 82045639185 is 58193654028.

It is not a de Polignac number, because 82045639185 - 2¹¹ = 82045637137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82045639187) 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, 10627947 + ... + 10635663.

It is an arithmetic number, because the mean of its divisors is an integer number (4135860096).

Almost surely, 2^82045639185 is an apocalyptic number.

It is an amenable number.

82045639185 is a deficient number, since it is larger than the sum of its proper divisors (50301883887).

82045639185 is a wasteful number, since it uses less digits than its factorization.

82045639185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13433.

The product of its (nonzero) digits is 2073600, while the sum is 51.

The spelling of 82045639185 in words is "eighty-two billion, forty-five million, six hundred thirty-nine thousand, one hundred eighty-five".