82713231728 has 20 divisors (see below), whose sum is σ = 160293272568. Its totient is φ = 41347225920.

The previous prime is 82713231721. The next prime is 82713231767.

82713231728 is nontrivially palindromic in base 10.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82713231721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 513926 + ... + 655397.

Almost surely, 2^82713231728 is an apocalyptic number.

It is an amenable number.

82713231728 is a deficient number, since it is larger than the sum of its proper divisors (77580040840).

82713231728 is a wasteful number, since it uses less digits than its factorization.

82713231728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173752 (or 1173746 counting only the distinct ones).

The product of its digits is 225792, while the sum is 44.

The spelling of 82713231728 in words is "eighty-two billion, seven hundred thirteen million, two hundred thirty-one thousand, seven hundred twenty-eight".