8412771761 has 2 divisors, whose sum is σ = 8412771762. Its totient is φ = 8412771760.

The previous prime is 8412771749. The next prime is 8412771781. The reversal of 8412771761 is 1671772148.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4958976400 + 3453795361 = 70420^2 + 58769^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8412771761 is a prime.

It is a super-2 number, since 2×8412771761² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8412771701) 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, 4206385880 + 4206385881.

It is an arithmetic number, because the mean of its divisors is an integer number (4206385881).

Almost surely, 2^8412771761 is an apocalyptic number.

It is an amenable number.

8412771761 is a deficient number, since it is larger than the sum of its proper divisors (1).

8412771761 is an equidigital number, since it uses as much as digits as its factorization.

8412771761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 131712, while the sum is 44.

The square root of 8412771761 is about 91721.1631031792. The cubic root of 8412771761 is about 2033.8224436168.

The spelling of 8412771761 in words is "eight billion, four hundred twelve million, seven hundred seventy-one thousand, seven hundred sixty-one".