82097843915 has 12 divisors (see below), whose sum is σ = 102031713264. Its totient is φ = 63413503776.

The previous prime is 82097843911. The next prime is 82097843951. The reversal of 82097843915 is 51934879028.

It is not a de Polignac number, because 82097843915 - 2² = 82097843911 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82097843911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9757727 + ... + 9766136.

It is an arithmetic number, because the mean of its divisors is an integer number (8502642772).

Almost surely, 2^82097843915 is an apocalyptic number.

82097843915 is a deficient number, since it is larger than the sum of its proper divisors (19933869349).

82097843915 is a wasteful number, since it uses less digits than its factorization.

82097843915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19523926 (or 19523897 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 56.

The spelling of 82097843915 in words is "eighty-two billion, ninety-seven million, eight hundred forty-three thousand, nine hundred fifteen".