11943608289 has 4 divisors (see below), whose sum is σ = 15924811056. Its totient is φ = 7962405524.

The previous prime is 11943608273. The next prime is 11943608293. The reversal of 11943608289 is 98280634911.

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 11943608289 - 2⁴ = 11943608273 is a prime.

It is a super-2 number, since 2×11943608289² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11943608489) 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, 1990601379 + ... + 1990601384.

It is an arithmetic number, because the mean of its divisors is an integer number (3981202764).

Almost surely, 2^11943608289 is an apocalyptic number.

It is an amenable number.

11943608289 is a deficient number, since it is larger than the sum of its proper divisors (3981202767).

11943608289 is an equidigital number, since it uses as much as digits as its factorization.

11943608289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3981202766.

The product of its (nonzero) digits is 746496, while the sum is 51.

The spelling of 11943608289 in words is "eleven billion, nine hundred forty-three million, six hundred eight thousand, two hundred eighty-nine".