5381867918 has 32 divisors (see below), whose sum is σ = 9330177024. Its totient is φ = 2280632832.

The previous prime is 5381867903. The next prime is 5381867927. The reversal of 5381867918 is 8197681835.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 445271 + ... + 457197.

It is an arithmetic number, because the mean of its divisors is an integer number (291568032).

Almost surely, 2^5381867918 is an apocalyptic number.

5381867918 is a deficient number, since it is larger than the sum of its proper divisors (3948309106).

5381867918 is a wasteful number, since it uses less digits than its factorization.

5381867918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12296.

The product of its digits is 2903040, while the sum is 56.

The square root of 5381867918 is about 73361.2153525281. The cubic root of 5381867918 is about 1752.4447917391. Note that the first 3 decimals are identical.

The spelling of 5381867918 in words is "five billion, three hundred eighty-one million, eight hundred sixty-seven thousand, nine hundred eighteen".