3638103313 has 4 divisors (see below), whose sum is σ = 3917957428. Its totient is φ = 3358249200.

The previous prime is 3638103281. The next prime is 3638103323. The reversal of 3638103313 is 3133018363.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3133018363 = 167 ⋅18760589.

It can be written as a sum of positive squares in 2 ways, for example, as 1279349824 + 2358753489 = 35768^2 + 48567^2 .

It is a cyclic number.

It is not a de Polignac number, because 3638103313 - 2⁵ = 3638103281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3638103323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139927038 + ... + 139927063.

It is an arithmetic number, because the mean of its divisors is an integer number (979489357).

Almost surely, 2^3638103313 is an apocalyptic number.

It is an amenable number.

3638103313 is a deficient number, since it is larger than the sum of its proper divisors (279854115).

3638103313 is a wasteful number, since it uses less digits than its factorization.

3638103313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279854114.

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 3638103313 is about 60316.6918273872. The cubic root of 3638103313 is about 1538.0071080055.

The spelling of 3638103313 in words is "three billion, six hundred thirty-eight million, one hundred three thousand, three hundred thirteen".