82446319465 has 4 divisors (see below), whose sum is σ = 98935583364. Its totient is φ = 65957055568.

The previous prime is 82446319453. The next prime is 82446319469. The reversal of 82446319465 is 56491364428.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29281027689 + 53165291776 = 171117^2 + 230576^2 .

It is a cyclic number.

It is not a de Polignac number, because 82446319465 - 2⁵ = 82446319433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82446319469) 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, 8244631942 + ... + 8244631951.

It is an arithmetic number, because the mean of its divisors is an integer number (24733895841).

Almost surely, 2^82446319465 is an apocalyptic number.

It is an amenable number.

82446319465 is a deficient number, since it is larger than the sum of its proper divisors (16489263899).

82446319465 is a wasteful number, since it uses less digits than its factorization.

82446319465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16489263898.

The product of its digits is 4976640, while the sum is 52.

The spelling of 82446319465 in words is "eighty-two billion, four hundred forty-six million, three hundred nineteen thousand, four hundred sixty-five".