82799975369 has 2 divisors, whose sum is σ = 82799975370. Its totient is φ = 82799975368.

The previous prime is 82799975353. The next prime is 82799975371. The reversal of 82799975369 is 96357999728.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66110694400 + 16689280969 = 257120^2 + 129187^2 .

It is a cyclic number.

It is not a de Polignac number, because 82799975369 - 2⁴ = 82799975353 is a prime.

It is a super-2 number, since 2×82799975369² (a number of 23 digits) contains 22 as substring.

Together with 82799975371, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 82799975296 and 82799975305.

It is not a weakly prime, because it can be changed into another prime (82799977369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41399987684 + 41399987685.

It is an arithmetic number, because the mean of its divisors is an integer number (41399987685).

Almost surely, 2^82799975369 is an apocalyptic number.

It is an amenable number.

82799975369 is a deficient number, since it is larger than the sum of its proper divisors (1).

82799975369 is an equidigital number, since it uses as much as digits as its factorization.

82799975369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 462944160, while the sum is 74.

The spelling of 82799975369 in words is "eighty-two billion, seven hundred ninety-nine million, nine hundred seventy-five thousand, three hundred sixty-nine".