82745282869 has 2 divisors, whose sum is σ = 82745282870. Its totient is φ = 82745282868.

The previous prime is 82745282857. The next prime is 82745282923. The reversal of 82745282869 is 96828254728.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77582860369 + 5162422500 = 278537^2 + 71850^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82745282869 is a prime.

It is a super-2 number, since 2×82745282869² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82745282969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41372641434 + 41372641435.

It is an arithmetic number, because the mean of its divisors is an integer number (41372641435).

Almost surely, 2^82745282869 is an apocalyptic number.

It is an amenable number.

82745282869 is a deficient number, since it is larger than the sum of its proper divisors (1).

82745282869 is an equidigital number, since it uses as much as digits as its factorization.

82745282869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30965760, while the sum is 61.

The spelling of 82745282869 in words is "eighty-two billion, seven hundred forty-five million, two hundred eighty-two thousand, eight hundred sixty-nine".