5278546647 has 24 divisors (see below), whose sum is σ = 8323136640. Its totient is φ = 3197032080.

The previous prime is 5278546643. The next prime is 5278546649. The reversal of 5278546647 is 7466458725.

It is a happy number.

5278546647 is a `hidden beast` number, since 52 + 7 + 8 + 546 + 6 + 47 = 666.

It is not a de Polignac number, because 5278546647 - 2² = 5278546643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5278546593 and 5278546602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5278546643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142504 + ... + 175682.

It is an arithmetic number, because the mean of its divisors is an integer number (346797360).

Almost surely, 2^5278546647 is an apocalyptic number.

5278546647 is a deficient number, since it is larger than the sum of its proper divisors (3044589993).

5278546647 is a wasteful number, since it uses less digits than its factorization.

5278546647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34803 (or 34800 counting only the distinct ones).

The product of its digits is 11289600, while the sum is 54.

The square root of 5278546647 is about 72653.6072538728. The cubic root of 5278546647 is about 1741.1577540614.

The spelling of 5278546647 in words is "five billion, two hundred seventy-eight million, five hundred forty-six thousand, six hundred forty-seven".