8539329481 has 2 divisors, whose sum is σ = 8539329482. Its totient is φ = 8539329480.

The previous prime is 8539329401. The next prime is 8539329529. The reversal of 8539329481 is 1849239358.

8539329481 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7515329481 + 1024000000 = 86691^2 + 32000^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8539329481 is a prime.

It is a super-2 number, since 2×8539329481² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8539329401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4269664740 + 4269664741.

It is an arithmetic number, because the mean of its divisors is an integer number (4269664741).

Almost surely, 2^8539329481 is an apocalyptic number.

It is an amenable number.

8539329481 is a deficient number, since it is larger than the sum of its proper divisors (1).

8539329481 is an equidigital number, since it uses as much as digits as its factorization.

8539329481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1866240, while the sum is 52.

The square root of 8539329481 is about 92408.4924722831. The cubic root of 8539329481 is about 2043.9703435386.

The spelling of 8539329481 in words is "eight billion, five hundred thirty-nine million, three hundred twenty-nine thousand, four hundred eighty-one".