5518886688 has 72 divisors (see below), whose sum is σ = 17936388288. Its totient is φ = 1576824192.

The previous prime is 5518886627. The next prime is 5518886753. The reversal of 5518886688 is 8866888155.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×5518886688² = 60916220549967218688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1366756 + ... + 1370787.

It is an arithmetic number, because the mean of its divisors is an integer number (249116504).

Almost surely, 2^5518886688 is an apocalyptic number.

It is an amenable number.

5518886688 is an abundant number, since it is smaller than the sum of its proper divisors (12417501600).

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

5518886688 is a wasteful number, since it uses less digits than its factorization.

5518886688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2737566 (or 2737555 counting only the distinct ones).

The product of its digits is 29491200, while the sum is 63.

The square root of 5518886688 is about 74289.2097683102. The cubic root of 5518886688 is about 1767.1923619540.

The spelling of 5518886688 in words is "five billion, five hundred eighteen million, eight hundred eighty-six thousand, six hundred eighty-eight".