6398164973 has 2 divisors, whose sum is σ = 6398164974. Its totient is φ = 6398164972.

The previous prime is 6398164967. The next prime is 6398165009. The reversal of 6398164973 is 3794618936.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6134492329 + 263672644 = 78323^2 + 16238^2 .

It is a cyclic number.

It is not a de Polignac number, because 6398164973 - 2⁴ = 6398164957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6398164963) 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, 3199082486 + 3199082487.

It is an arithmetic number, because the mean of its divisors is an integer number (3199082487).

Almost surely, 2^6398164973 is an apocalyptic number.

It is an amenable number.

6398164973 is a deficient number, since it is larger than the sum of its proper divisors (1).

6398164973 is an equidigital number, since it uses as much as digits as its factorization.

6398164973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5878656, while the sum is 56.

The square root of 6398164973 is about 79988.5302590315. The cubic root of 6398164973 is about 1856.4580697991.

The spelling of 6398164973 in words is "six billion, three hundred ninety-eight million, one hundred sixty-four thousand, nine hundred seventy-three".