11638183673 has 2 divisors, whose sum is σ = 11638183674. Its totient is φ = 11638183672.

The previous prime is 11638183637. The next prime is 11638183681. The reversal of 11638183673 is 37638183611.

Together with previous prime (11638183637) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9946671289 + 1691512384 = 99733^2 + 41128^2 .

It is a cyclic number.

It is not a de Polignac number, because 11638183673 - 2²⁴ = 11621406457 is a prime.

It is not a weakly prime, because it can be changed into another prime (11638183693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5819091836 + 5819091837.

It is an arithmetic number, because the mean of its divisors is an integer number (5819091837).

Almost surely, 2^11638183673 is an apocalyptic number.

It is an amenable number.

11638183673 is a deficient number, since it is larger than the sum of its proper divisors (1).

11638183673 is an equidigital number, since it uses as much as digits as its factorization.

11638183673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 47.

The spelling of 11638183673 in words is "eleven billion, six hundred thirty-eight million, one hundred eighty-three thousand, six hundred seventy-three".