82315897597 has 12 divisors (see below), whose sum is σ = 87772004796. Its totient is φ = 77179495680.

The previous prime is 82315897571. The next prime is 82315897603. The reversal of 82315897597 is 79579851328.

It can be written as a sum of positive squares in 2 ways, for example, as 29234502361 + 53081395236 = 170981^2 + 230394^2 .

It is a de Polignac number, because none of the positive numbers 2^k-82315897597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82315897537) 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, 1140354 + ... + 1210387.

It is an arithmetic number, because the mean of its divisors is an integer number (7314333733).

Almost surely, 2^82315897597 is an apocalyptic number.

It is an amenable number.

82315897597 is a deficient number, since it is larger than the sum of its proper divisors (5456107199).

82315897597 is a wasteful number, since it uses less digits than its factorization.

82315897597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2350876 (or 2350857 counting only the distinct ones).

The product of its digits is 38102400, while the sum is 64.

The spelling of 82315897597 in words is "eighty-two billion, three hundred fifteen million, eight hundred ninety-seven thousand, five hundred ninety-seven".