11987648219 has 2 divisors, whose sum is σ = 11987648220. Its totient is φ = 11987648218.

The previous prime is 11987648201. The next prime is 11987648263. The reversal of 11987648219 is 91284678911.

It is a weak prime.

It is an emirp because it is prime and its reverse (91284678911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11987648219 - 2³² = 7692680923 is a prime.

It is a super-2 number, since 2×11987648219² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11987648119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5993824109 + 5993824110.

It is an arithmetic number, because the mean of its divisors is an integer number (5993824110).

Almost surely, 2^11987648219 is an apocalyptic number.

11987648219 is a deficient number, since it is larger than the sum of its proper divisors (1).

11987648219 is an equidigital number, since it uses as much as digits as its factorization.

11987648219 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 11987648219 in words is "eleven billion, nine hundred eighty-seven million, six hundred forty-eight thousand, two hundred nineteen".