82097831831 has 8 divisors (see below), whose sum is σ = 82587778800. Its totient is φ = 81608550912.

The previous prime is 82097831807. The next prime is 82097831833. The reversal of 82097831831 is 13813879028.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82097831831 is a prime.

It is a super-2 number, since 2×82097831831² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82097831831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82097831833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81845 + ... + 413393.

It is an arithmetic number, because the mean of its divisors is an integer number (10323472350).

Almost surely, 2^82097831831 is an apocalyptic number.

82097831831 is a deficient number, since it is larger than the sum of its proper divisors (489946969).

82097831831 is a wasteful number, since it uses less digits than its factorization.

82097831831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333025.

The product of its (nonzero) digits is 580608, while the sum is 50.

The spelling of 82097831831 in words is "eighty-two billion, ninety-seven million, eight hundred thirty-one thousand, eight hundred thirty-one".