289021947919 has 2 divisors, whose sum is σ = 289021947920. Its totient is φ = 289021947918.

The previous prime is 289021947829. The next prime is 289021947947. The reversal of 289021947919 is 919749120982.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 289021947919 - 2⁷ = 289021947791 is a prime.

It is a super-2 number, since 2×289021947919² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (289021947959) 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, 144510973959 + 144510973960.

It is an arithmetic number, because the mean of its divisors is an integer number (144510973960).

Almost surely, 2^289021947919 is an apocalyptic number.

289021947919 is a deficient number, since it is larger than the sum of its proper divisors (1).

289021947919 is an equidigital number, since it uses as much as digits as its factorization.

289021947919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5878656, while the sum is 61.

The spelling of 289021947919 in words is "two hundred eighty-nine billion, twenty-one million, nine hundred forty-seven thousand, nine hundred nineteen".