5638338365 has 16 divisors (see below), whose sum is σ = 7413629760. Its totient is φ = 4082536320.

The previous prime is 5638338317. The next prime is 5638338383.

5638338365 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 5638338365 - 2¹⁸ = 5638076221 is a prime.

It is a Curzon number.

It is a congruent 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, 213320 + ... + 238289.

It is an arithmetic number, because the mean of its divisors is an integer number (463351860).

Almost surely, 2^5638338365 is an apocalyptic number.

5638338365 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5638338365 is a deficient number, since it is larger than the sum of its proper divisors (1775291395).

5638338365 is a wasteful number, since it uses less digits than its factorization.

5638338365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451852.

The product of its digits is 4665600, while the sum is 50.

The square root of 5638338365 is about 75088.8697810801. The cubic root of 5638338365 is about 1779.8512652939.

The spelling of 5638338365 in words is "five billion, six hundred thirty-eight million, three hundred thirty-eight thousand, three hundred sixty-five".