82569881229 has 32 divisors (see below), whose sum is σ = 129064513536. Its totient is φ = 46395697920.

The previous prime is 82569881203. The next prime is 82569881257. The reversal of 82569881229 is 92218896528.

It is not a de Polignac number, because 82569881229 - 2⁵ = 82569881197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82569881129) 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, 1060797 + ... + 1135970.

It is an arithmetic number, because the mean of its divisors is an integer number (4033266048).

Almost surely, 2^82569881229 is an apocalyptic number.

It is an amenable number.

82569881229 is a deficient number, since it is larger than the sum of its proper divisors (46494632307).

82569881229 is a wasteful number, since it uses less digits than its factorization.

82569881229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2196865.

The product of its digits is 9953280, while the sum is 60.

The spelling of 82569881229 in words is "eighty-two billion, five hundred sixty-nine million, eight hundred eighty-one thousand, two hundred twenty-nine".