5608518381 has 8 divisors (see below), whose sum is σ = 8308916160. Its totient is φ = 3739012236.

The previous prime is 5608518361. The next prime is 5608518389. The reversal of 5608518381 is 1838158065.

5608518381 is a `hidden beast` number, since 5 + 608 + 5 + 1 + 8 + 38 + 1 = 666.

5608518381 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5608518381 - 2¹⁸ = 5608256237 is a prime.

It is a super-2 number, since 2×5608518381² = 62910956860029722322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5608518389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103861425 + ... + 103861478.

It is an arithmetic number, because the mean of its divisors is an integer number (1038614520).

Almost surely, 2^5608518381 is an apocalyptic number.

It is an amenable number.

5608518381 is a deficient number, since it is larger than the sum of its proper divisors (2700397779).

5608518381 is a wasteful number, since it uses less digits than its factorization.

5608518381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207722912 (or 207722906 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 45.

The square root of 5608518381 is about 74890.0419348260. The cubic root of 5608518381 is about 1776.7079645289.

The spelling of 5608518381 in words is "five billion, six hundred eight million, five hundred eighteen thousand, three hundred eighty-one".