82518985292365 has 4 divisors (see below), whose sum is σ = 99022782350844. Its totient is φ = 66015188233888.

The previous prime is 82518985292363. The next prime is 82518985292371. The reversal of 82518985292365 is 56329258981528.

It is a happy number.

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 15842843814249 + 66676141478116 = 3980307^2 + 8165546^2 .

It is a cyclic number.

It is not a de Polignac number, because 82518985292365 - 2¹ = 82518985292363 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 (82518985292363) 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, 8251898529232 + ... + 8251898529241.

It is an arithmetic number, because the mean of its divisors is an integer number (24755695587711).

Almost surely, 2^{82518985292365} is an apocalyptic number.

It is an amenable number.

82518985292365 is a deficient number, since it is larger than the sum of its proper divisors (16503797058479).

82518985292365 is a wasteful number, since it uses less digits than its factorization.

82518985292365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16503797058478.

The product of its digits is 746496000, while the sum is 73.

The spelling of 82518985292365 in words is "eighty-two trillion, five hundred eighteen billion, nine hundred eighty-five million, two hundred ninety-two thousand, three hundred sixty-five".