11638483217 has 2 divisors, whose sum is σ = 11638483218. Its totient is φ = 11638483216.

The previous prime is 11638483189. The next prime is 11638483247. The reversal of 11638483217 is 71238483611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11638310161 + 173056 = 107881^2 + 416^2 .

It is a cyclic number.

It is not a de Polignac number, because 11638483217 - 2²⁴ = 11621706001 is a prime.

It is not a weakly prime, because it can be changed into another prime (11638483247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5819241608 + 5819241609.

It is an arithmetic number, because the mean of its divisors is an integer number (5819241609).

Almost surely, 2^11638483217 is an apocalyptic number.

It is an amenable number.

11638483217 is a deficient number, since it is larger than the sum of its proper divisors (1).

11638483217 is an equidigital number, since it uses as much as digits as its factorization.

11638483217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 44.

The spelling of 11638483217 in words is "eleven billion, six hundred thirty-eight million, four hundred eighty-three thousand, two hundred seventeen".