5478220678 has 24 divisors (see below), whose sum is σ = 9563346000. Its totient is φ = 2346725808.

The previous prime is 5478220667. The next prime is 5478220679. The reversal of 5478220678 is 8760228745.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5478220679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 222423 + ... + 245821.

It is an arithmetic number, because the mean of its divisors is an integer number (398472750).

Almost surely, 2^5478220678 is an apocalyptic number.

5478220678 is a deficient number, since it is larger than the sum of its proper divisors (4085125322).

5478220678 is a wasteful number, since it uses less digits than its factorization.

5478220678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25804 (or 25797 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 49.

The square root of 5478220678 is about 74015.0030601904. The cubic root of 5478220678 is about 1762.8411280627.

The spelling of 5478220678 in words is "five billion, four hundred seventy-eight million, two hundred twenty thousand, six hundred seventy-eight".