82522618216813 has 8 divisors (see below), whose sum is σ = 83878915881240. Its totient is φ = 81166432418880.

The previous prime is 82522618216811. The next prime is 82522618216853. The reversal of 82522618216813 is 31861281622528.

It can be written as a sum of positive squares in 4 ways, for example, as 4903469926884 + 77619148289929 = 2214378^2 + 8810173^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 82522618216813 - 2¹ = 82522618216811 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 (82522618216811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26478478 + ... + 29430511.

It is an arithmetic number, because the mean of its divisors is an integer number (10484864485155).

Almost surely, 2^{82522618216813} is an apocalyptic number.

It is an amenable number.

82522618216813 is a deficient number, since it is larger than the sum of its proper divisors (1356297664427).

82522618216813 is a wasteful number, since it uses less digits than its factorization.

82522618216813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55933247.

The product of its digits is 4423680, while the sum is 55.

The spelling of 82522618216813 in words is "eighty-two trillion, five hundred twenty-two billion, six hundred eighteen million, two hundred sixteen thousand, eight hundred thirteen".