489910792369 has 2 divisors, whose sum is σ = 489910792370. Its totient is φ = 489910792368.

The previous prime is 489910792367. The next prime is 489910792403. The reversal of 489910792369 is 963297019984.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 386371641744 + 103539150625 = 621588^2 + 321775^2 .

It is a cyclic number.

It is not a de Polignac number, because 489910792369 - 2¹ = 489910792367 is a prime.

It is a super-2 number, since 2×489910792369² (a number of 24 digits) contains 22 as substring.

Together with 489910792367, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (489910792367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244955396184 + 244955396185.

It is an arithmetic number, because the mean of its divisors is an integer number (244955396185).

Almost surely, 2^489910792369 is an apocalyptic number.

It is an amenable number.

489910792369 is a deficient number, since it is larger than the sum of its proper divisors (1).

489910792369 is an equidigital number, since it uses as much as digits as its factorization.

489910792369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52907904, while the sum is 67.

The spelling of 489910792369 in words is "four hundred eighty-nine billion, nine hundred ten million, seven hundred ninety-two thousand, three hundred sixty-nine".