6499860473 has 2 divisors, whose sum is σ = 6499860474. Its totient is φ = 6499860472.

The previous prime is 6499860463. The next prime is 6499860511. The reversal of 6499860473 is 3740689946.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5545483024 + 954377449 = 74468^2 + 30893^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6499860473 is a prime.

It is not a weakly prime, because it can be changed into another prime (6499860463) 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, 3249930236 + 3249930237.

It is an arithmetic number, because the mean of its divisors is an integer number (3249930237).

Almost surely, 2^6499860473 is an apocalyptic number.

It is an amenable number.

6499860473 is a deficient number, since it is larger than the sum of its proper divisors (1).

6499860473 is an equidigital number, since it uses as much as digits as its factorization.

6499860473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7838208, while the sum is 56.

The square root of 6499860473 is about 80621.7121686212. The cubic root of 6499860473 is about 1866.2422248237.

The spelling of 6499860473 in words is "six billion, four hundred ninety-nine million, eight hundred sixty thousand, four hundred seventy-three".