82381570205 has 16 divisors (see below), whose sum is σ = 107859173184. Its totient is φ = 59905975680.

The previous prime is 82381570169. The next prime is 82381570207. The reversal of 82381570205 is 50207518328.

It is not a de Polignac number, because 82381570205 - 2¹⁶ = 82381504669 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82381570207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 340169 + ... + 529601.

It is an arithmetic number, because the mean of its divisors is an integer number (6741198324).

Almost surely, 2^82381570205 is an apocalyptic number.

It is an amenable number.

82381570205 is a deficient number, since it is larger than the sum of its proper divisors (25477602979).

82381570205 is a wasteful number, since it uses less digits than its factorization.

82381570205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197356.

The product of its (nonzero) digits is 134400, while the sum is 41.

The spelling of 82381570205 in words is "eighty-two billion, three hundred eighty-one million, five hundred seventy thousand, two hundred five".