489502218823 has 2 divisors, whose sum is σ = 489502218824. Its totient is φ = 489502218822.

The previous prime is 489502218817. The next prime is 489502218893. The reversal of 489502218823 is 328812205984.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 489502218823 - 2²⁹ = 488965347911 is a prime.

It is a super-2 number, since 2×489502218823² (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 (489502218893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244751109411 + 244751109412.

It is an arithmetic number, because the mean of its divisors is an integer number (244751109412).

Almost surely, 2^489502218823 is an apocalyptic number.

489502218823 is a deficient number, since it is larger than the sum of its proper divisors (1).

489502218823 is an equidigital number, since it uses as much as digits as its factorization.

489502218823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2211840, while the sum is 52.

The spelling of 489502218823 in words is "four hundred eighty-nine billion, five hundred two million, two hundred eighteen thousand, eight hundred twenty-three".