11563575838 has 8 divisors (see below), whose sum is σ = 17373478032. Its totient is φ = 5772416496.

The previous prime is 11563575833. The next prime is 11563575839. The reversal of 11563575838 is 83857536511.

11563575838 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×11563575838² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11563575833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4684170 + ... + 4686637.

It is an arithmetic number, because the mean of its divisors is an integer number (2171684754).

Almost surely, 2^11563575838 is an apocalyptic number.

11563575838 is a deficient number, since it is larger than the sum of its proper divisors (5809902194).

11563575838 is an equidigital number, since it uses as much as digits as its factorization.

11563575838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9371426.

The product of its digits is 3024000, while the sum is 52.

The spelling of 11563575838 in words is "eleven billion, five hundred sixty-three million, five hundred seventy-five thousand, eight hundred thirty-eight".