82404547205 has 16 divisors (see below), whose sum is σ = 102809214144. Its totient is φ = 63355797120.

The previous prime is 82404547157. The next prime is 82404547229. The reversal of 82404547205 is 50274540428.

It is a happy number.

It is not a de Polignac number, because 82404547205 - 2²⁶ = 82337438341 is a prime.

It is a super-4 number, since 4×82404547205⁴ (a number of 45 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2986067 + ... + 3013536.

It is an arithmetic number, because the mean of its divisors is an integer number (6425575884).

Almost surely, 2^82404547205 is an apocalyptic number.

It is an amenable number.

82404547205 is a deficient number, since it is larger than the sum of its proper divisors (20404666939).

82404547205 is a wasteful number, since it uses less digits than its factorization.

82404547205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5999716.

The product of its (nonzero) digits is 358400, while the sum is 41.

The spelling of 82404547205 in words is "eighty-two billion, four hundred four million, five hundred forty-seven thousand, two hundred five".