5478638844 has 48 divisors (see below), whose sum is σ = 14907872000. Its totient is φ = 1565324208.

The previous prime is 5478638839. The next prime is 5478638929. The reversal of 5478638844 is 4488368745.

It is a super-3 number, since 3×5478638844³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 661414 + ... + 669645.

Almost surely, 2^5478638844 is an apocalyptic number.

It is an amenable number.

5478638844 is an abundant number, since it is smaller than the sum of its proper divisors (9429233156).

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

5478638844 is a wasteful number, since it uses less digits than its factorization.

5478638844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331087 (or 1331071 counting only the distinct ones).

The product of its digits is 20643840, while the sum is 57.

The square root of 5478638844 is about 74017.8278795048. The cubic root of 5478638844 is about 1762.8859809149.

The spelling of 5478638844 in words is "five billion, four hundred seventy-eight million, six hundred thirty-eight thousand, eight hundred forty-four".