6460698645857 has 2 divisors, whose sum is σ = 6460698645858. Its totient is φ = 6460698645856.

The previous prime is 6460698645851. The next prime is 6460698645901. The reversal of 6460698645857 is 7585468960646.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6436566887521 + 24131758336 = 2537039^2 + 155344^2 .

It is a cyclic number.

It is not a de Polignac number, because 6460698645857 - 2¹⁶ = 6460698580321 is a prime.

It is not a weakly prime, because it can be changed into another prime (6460698645851) 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, 3230349322928 + 3230349322929.

It is an arithmetic number, because the mean of its divisors is an integer number (3230349322929).

Almost surely, 2^{6460698645857} is an apocalyptic number.

It is an amenable number.

6460698645857 is a deficient number, since it is larger than the sum of its proper divisors (1).

6460698645857 is an equidigital number, since it uses as much as digits as its factorization.

6460698645857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2090188800, while the sum is 74.

The spelling of 6460698645857 in words is "six trillion, four hundred sixty billion, six hundred ninety-eight million, six hundred forty-five thousand, eight hundred fifty-seven".