5381838865 has 16 divisors (see below), whose sum is σ = 6965569296. Its totient is φ = 3968236800.

The previous prime is 5381838859. The next prime is 5381838899. The reversal of 5381838865 is 5688381835.

It can be written as a sum of positive squares in 8 ways, for example, as 910108224 + 4471730641 = 30168^2 + 66871^2 .

It is not a de Polignac number, because 5381838865 - 2³ = 5381838857 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19666 + ... + 105595.

It is an arithmetic number, because the mean of its divisors is an integer number (435348081).

Almost surely, 2^5381838865 is an apocalyptic number.

It is an amenable number.

5381838865 is a deficient number, since it is larger than the sum of its proper divisors (1583730431).

5381838865 is a wasteful number, since it uses less digits than its factorization.

5381838865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125940.

The product of its digits is 5529600, while the sum is 55.

The square root of 5381838865 is about 73361.0173389110. The cubic root of 5381838865 is about 1752.4416383190.

The spelling of 5381838865 in words is "five billion, three hundred eighty-one million, eight hundred thirty-eight thousand, eight hundred sixty-five".