6489159697 has 2 divisors, whose sum is σ = 6489159698. Its totient is φ = 6489159696.

The previous prime is 6489159659. The next prime is 6489159707. The reversal of 6489159697 is 7969519846.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3585135376 + 2904024321 = 59876^2 + 53889^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6489159697 is a prime.

It is not a weakly prime, because it can be changed into another prime (6489159637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3244579848 + 3244579849.

It is an arithmetic number, because the mean of its divisors is an integer number (3244579849).

Almost surely, 2^6489159697 is an apocalyptic number.

It is an amenable number.

6489159697 is a deficient number, since it is larger than the sum of its proper divisors (1).

6489159697 is an equidigital number, since it uses as much as digits as its factorization.

6489159697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29393280, while the sum is 64.

The square root of 6489159697 is about 80555.3207243320. The cubic root of 6489159697 is about 1865.2175254380.

The spelling of 6489159697 in words is "six billion, four hundred eighty-nine million, one hundred fifty-nine thousand, six hundred ninety-seven".