489999063397 has 2 divisors, whose sum is σ = 489999063398. Its totient is φ = 489999063396.

The previous prime is 489999063371. The next prime is 489999063403. The reversal of 489999063397 is 793360999984.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 421874931361 + 68124132036 = 649519^2 + 261006^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-489999063397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (489999069397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244999531698 + 244999531699.

It is an arithmetic number, because the mean of its divisors is an integer number (244999531699).

Almost surely, 2^489999063397 is an apocalyptic number.

It is an amenable number.

489999063397 is a deficient number, since it is larger than the sum of its proper divisors (1).

489999063397 is an equidigital number, since it uses as much as digits as its factorization.

489999063397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 714256704, while the sum is 76.

The spelling of 489999063397 in words is "four hundred eighty-nine billion, nine hundred ninety-nine million, sixty-three thousand, three hundred ninety-seven".