6415277421673 has 2 divisors, whose sum is σ = 6415277421674. Its totient is φ = 6415277421672.

The previous prime is 6415277421589. The next prime is 6415277421689. The reversal of 6415277421673 is 3761247725146.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3435417766144 + 2979859655529 = 1853488^2 + 1726227^2 .

It is a cyclic number.

It is not a de Polignac number, because 6415277421673 - 2²⁹ = 6414740550761 is a prime.

It is not a weakly prime, because it can be changed into another prime (6415277461673) 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, 3207638710836 + 3207638710837.

It is an arithmetic number, because the mean of its divisors is an integer number (3207638710837).

Almost surely, 2^{6415277421673} is an apocalyptic number.

It is an amenable number.

6415277421673 is a deficient number, since it is larger than the sum of its proper divisors (1).

6415277421673 is an equidigital number, since it uses as much as digits as its factorization.

6415277421673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11854080, while the sum is 55.

The spelling of 6415277421673 in words is "six trillion, four hundred fifteen billion, two hundred seventy-seven million, four hundred twenty-one thousand, six hundred seventy-three".