6489794845487 has 2 divisors, whose sum is σ = 6489794845488. Its totient is φ = 6489794845486.

The previous prime is 6489794845447. The next prime is 6489794845549. The reversal of 6489794845487 is 7845484979846.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6489794845487 - 2¹⁴ = 6489794829103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6489794845427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3244897422743 + 3244897422744.

It is an arithmetic number, because the mean of its divisors is an integer number (3244897422744).

Almost surely, 2^{6489794845487} is an apocalyptic number.

6489794845487 is a deficient number, since it is larger than the sum of its proper divisors (1).

6489794845487 is an equidigital number, since it uses as much as digits as its factorization.

6489794845487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15606743040, while the sum is 83.

The spelling of 6489794845487 in words is "six trillion, four hundred eighty-nine billion, seven hundred ninety-four million, eight hundred forty-five thousand, four hundred eighty-seven".