6478555271226 has 16 divisors (see below), whose sum is σ = 12957490136928. Its totient is φ = 2159455158000.

The previous prime is 6478555271107. The next prime is 6478555271233. The reversal of 6478555271226 is 6221725558746.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 6478555271226.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 15594325 + ... + 16004376.

It is an arithmetic number, because the mean of its divisors is an integer number (809843133558).

Almost surely, 2^{6478555271226} is an apocalyptic number.

6478555271226 is an abundant number, since it is smaller than the sum of its proper divisors (6478934865702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6478555271226 is a wasteful number, since it uses less digits than its factorization.

6478555271226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31632877.

The product of its digits is 56448000, while the sum is 60.

The spelling of 6478555271226 in words is "six trillion, four hundred seventy-eight billion, five hundred fifty-five million, two hundred seventy-one thousand, two hundred twenty-six".