6827531489 has 2 divisors, whose sum is σ = 6827531490. Its totient is φ = 6827531488.

The previous prime is 6827531413. The next prime is 6827531521. The reversal of 6827531489 is 9841357286.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3756709264 + 3070822225 = 61292^2 + 55415^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6827531489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6827531489.

It is not a weakly prime, because it can be changed into another prime (6827531089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3413765744 + 3413765745.

It is an arithmetic number, because the mean of its divisors is an integer number (3413765745).

Almost surely, 2^6827531489 is an apocalyptic number.

It is an amenable number.

6827531489 is a deficient number, since it is larger than the sum of its proper divisors (1).

6827531489 is an equidigital number, since it uses as much as digits as its factorization.

6827531489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2903040, while the sum is 53.

The square root of 6827531489 is about 82628.8780572507. The cubic root of 6827531489 is about 1897.0898652822.

The spelling of 6827531489 in words is "six billion, eight hundred twenty-seven million, five hundred thirty-one thousand, four hundred eighty-nine".