498664009573 has 2 divisors, whose sum is σ = 498664009574. Its totient is φ = 498664009572.

The previous prime is 498664009489. The next prime is 498664009577. The reversal of 498664009573 is 375900466894.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 295242263044 + 203421746529 = 543362^2 + 451023^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-498664009573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (498664009577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249332004786 + 249332004787.

It is an arithmetic number, because the mean of its divisors is an integer number (249332004787).

Almost surely, 2^498664009573 is an apocalyptic number.

It is an amenable number.

498664009573 is a deficient number, since it is larger than the sum of its proper divisors (1).

498664009573 is an equidigital number, since it uses as much as digits as its factorization.

498664009573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39191040, while the sum is 61.

The spelling of 498664009573 in words is "four hundred ninety-eight billion, six hundred sixty-four million, nine thousand, five hundred seventy-three".