5438518468 has 12 divisors (see below), whose sum is σ = 9696981420. Its totient is φ = 2667952352.

The previous prime is 5438518427. The next prime is 5438518489. The reversal of 5438518468 is 8648158345.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2146283584 + 3292234884 = 46328^2 + 57378^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12826483 + ... + 12826906.

It is an arithmetic number, because the mean of its divisors is an integer number (808081785).

Almost surely, 2^5438518468 is an apocalyptic number.

It is an amenable number.

5438518468 is a deficient number, since it is larger than the sum of its proper divisors (4258462952).

5438518468 is a wasteful number, since it uses less digits than its factorization.

5438518468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25653446 (or 25653444 counting only the distinct ones).

The product of its digits is 3686400, while the sum is 52.

The square root of 5438518468 is about 73746.3115552229. The cubic root of 5438518468 is about 1758.5721964296.

The spelling of 5438518468 in words is "five billion, four hundred thirty-eight million, five hundred eighteen thousand, four hundred sixty-eight".