5518478838 has 16 divisors (see below), whose sum is σ = 11038048560. Its totient is φ = 1839311136.

The previous prime is 5518478813. The next prime is 5518478881. The reversal of 5518478838 is 8388748155.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29928 + ... + 109236.

It is an arithmetic number, because the mean of its divisors is an integer number (689878035).

Almost surely, 2^5518478838 is an apocalyptic number.

5518478838 is an abundant number, since it is smaller than the sum of its proper divisors (5519569722).

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

5518478838 is a wasteful number, since it uses less digits than its factorization.

5518478838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90911.

The product of its digits is 8601600, while the sum is 57.

The square root of 5518478838 is about 74286.4647025284. The cubic root of 5518478838 is about 1767.1488285870.

The spelling of 5518478838 in words is "five billion, five hundred eighteen million, four hundred seventy-eight thousand, eight hundred thirty-eight".