6478449599273 has 2 divisors, whose sum is σ = 6478449599274. Its totient is φ = 6478449599272.

The previous prime is 6478449599263. The next prime is 6478449599329. The reversal of 6478449599273 is 3729959448746.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3331384243264 + 3147065356009 = 1825208^2 + 1773997^2 .

It is a cyclic number.

It is not a de Polignac number, because 6478449599273 - 2¹⁴ = 6478449582889 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6478449599194 and 6478449599203.

It is not a weakly prime, because it can be changed into another prime (6478449599263) 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, 3239224799636 + 3239224799637.

It is an arithmetic number, because the mean of its divisors is an integer number (3239224799637).

Almost surely, 2^{6478449599273} is an apocalyptic number.

It is an amenable number.

6478449599273 is a deficient number, since it is larger than the sum of its proper divisors (1).

6478449599273 is an equidigital number, since it uses as much as digits as its factorization.

6478449599273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3292047360, while the sum is 77.

The spelling of 6478449599273 in words is "six trillion, four hundred seventy-eight billion, four hundred forty-nine million, five hundred ninety-nine thousand, two hundred seventy-three".