11891225419 has 2 divisors, whose sum is σ = 11891225420. Its totient is φ = 11891225418.

The previous prime is 11891225417. The next prime is 11891225443. The reversal of 11891225419 is 91452219811.

11891225419 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11891225419 - 2¹ = 11891225417 is a prime.

It is a super-2 number, since 2×11891225419² (a number of 21 digits) contains 22 as substring.

Together with 11891225417, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11891225417) 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 as a sum of consecutive naturals, namely, 5945612709 + 5945612710.

It is an arithmetic number, because the mean of its divisors is an integer number (5945612710).

Almost surely, 2^11891225419 is an apocalyptic number.

11891225419 is a deficient number, since it is larger than the sum of its proper divisors (1).

11891225419 is an equidigital number, since it uses as much as digits as its factorization.

11891225419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 43.

The spelling of 11891225419 in words is "eleven billion, eight hundred ninety-one million, two hundred twenty-five thousand, four hundred nineteen".