889542742219 has 2 divisors, whose sum is σ = 889542742220. Its totient is φ = 889542742218.

The previous prime is 889542742217. The next prime is 889542742321. The reversal of 889542742219 is 912247245988.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 889542742219 - 2¹ = 889542742217 is a prime.

It is a super-2 number, since 2×889542742219² (a number of 25 digits) contains 22 as substring.

Together with 889542742217, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (889542742213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 444771371109 + 444771371110.

It is an arithmetic number, because the mean of its divisors is an integer number (444771371110).

Almost surely, 2^889542742219 is an apocalyptic number.

889542742219 is a deficient number, since it is larger than the sum of its proper divisors (1).

889542742219 is an equidigital number, since it uses as much as digits as its factorization.

889542742219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23224320, while the sum is 61.

The spelling of 889542742219 in words is "eight hundred eighty-nine billion, five hundred forty-two million, seven hundred forty-two thousand, two hundred nineteen".