8427524681 has 2 divisors, whose sum is σ = 8427524682. Its totient is φ = 8427524680.

The previous prime is 8427524653. The next prime is 8427524741. The reversal of 8427524681 is 1864257248.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8424302656 + 3222025 = 91784^2 + 1795^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8427524681 is a prime.

It is a super-2 number, since 2×8427524681² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8427524981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4213762340 + 4213762341.

It is an arithmetic number, because the mean of its divisors is an integer number (4213762341).

Almost surely, 2^8427524681 is an apocalyptic number.

It is an amenable number.

8427524681 is a deficient number, since it is larger than the sum of its proper divisors (1).

8427524681 is an equidigital number, since it uses as much as digits as its factorization.

8427524681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 860160, while the sum is 47.

The square root of 8427524681 is about 91801.5505370144. The cubic root of 8427524681 is about 2035.0106092048.

The spelling of 8427524681 in words is "eight billion, four hundred twenty-seven million, five hundred twenty-four thousand, six hundred eighty-one".