82727930869 has 2 divisors, whose sum is σ = 82727930870. Its totient is φ = 82727930868.

The previous prime is 82727930863. The next prime is 82727930927. The reversal of 82727930869 is 96803972728.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81989450244 + 738480625 = 286338^2 + 27175^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82727930869 is a prime.

It is a super-2 number, since 2×82727930869² (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 (82727930863) 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, 41363965434 + 41363965435.

It is an arithmetic number, because the mean of its divisors is an integer number (41363965435).

Almost surely, 2^82727930869 is an apocalyptic number.

It is an amenable number.

82727930869 is a deficient number, since it is larger than the sum of its proper divisors (1).

82727930869 is an equidigital number, since it uses as much as digits as its factorization.

82727930869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18289152, while the sum is 61.

The spelling of 82727930869 in words is "eighty-two billion, seven hundred twenty-seven million, nine hundred thirty thousand, eight hundred sixty-nine".