11563385289 has 4 divisors (see below), whose sum is σ = 15417847056. Its totient is φ = 7708923524.

The previous prime is 11563385287. The next prime is 11563385303. The reversal of 11563385289 is 98258336511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11563385289 - 2¹ = 11563385287 is a prime.

It is a super-2 number, since 2×11563385289² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11563385287) 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, 1927230879 + ... + 1927230884.

It is an arithmetic number, because the mean of its divisors is an integer number (3854461764).

Almost surely, 2^11563385289 is an apocalyptic number.

It is an amenable number.

11563385289 is a deficient number, since it is larger than the sum of its proper divisors (3854461767).

11563385289 is an equidigital number, since it uses as much as digits as its factorization.

11563385289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3854461766.

The product of its digits is 1555200, while the sum is 51.

The spelling of 11563385289 in words is "eleven billion, five hundred sixty-three million, three hundred eighty-five thousand, two hundred eighty-nine".