6447797055 has 36 divisors (see below), whose sum is σ = 13000868712. Its totient is φ = 2947563360.

The previous prime is 6447797033. The next prime is 6447797071. The reversal of 6447797055 is 5507977446.

It is not a de Polignac number, because 6447797055 - 2¹⁰ = 6447796031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6447796992 and 6447797010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1459881 + ... + 1464290.

It is an arithmetic number, because the mean of its divisors is an integer number (361135242).

Almost surely, 2^6447797055 is an apocalyptic number.

6447797055 is an abundant number, since it is smaller than the sum of its proper divisors (6553071657).

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

6447797055 is a wasteful number, since it uses less digits than its factorization.

6447797055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2924196 (or 2924186 counting only the distinct ones).

The product of its (nonzero) digits is 7408800, while the sum is 54.

The square root of 6447797055 is about 80298.1759132796. The cubic root of 6447797055 is about 1861.2460389914.

The spelling of 6447797055 in words is "six billion, four hundred forty-seven million, seven hundred ninety-seven thousand, fifty-five".