11968472189 has 2 divisors, whose sum is σ = 11968472190. Its totient is φ = 11968472188.

The previous prime is 11968472161. The next prime is 11968472213. The reversal of 11968472189 is 98127486911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9519904900 + 2448567289 = 97570^2 + 49483^2 .

It is a cyclic number.

It is not a de Polignac number, because 11968472189 - 2²⁴ = 11951694973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11968472149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5984236094 + 5984236095.

It is an arithmetic number, because the mean of its divisors is an integer number (5984236095).

Almost surely, 2^11968472189 is an apocalyptic number.

It is an amenable number.

11968472189 is a deficient number, since it is larger than the sum of its proper divisors (1).

11968472189 is an equidigital number, since it uses as much as digits as its factorization.

11968472189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 56.

The spelling of 11968472189 in words is "eleven billion, nine hundred sixty-eight million, four hundred seventy-two thousand, one hundred eighty-nine".