497731889653 has 2 divisors, whose sum is σ = 497731889654. Its totient is φ = 497731889652.

The previous prime is 497731889647. The next prime is 497731889723. The reversal of 497731889653 is 356988137794.

It is an a-pointer prime, because the next prime (497731889723) can be obtained adding 497731889653 to its sum of digits (70).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 335285005444 + 162446884209 = 579038^2 + 403047^2 .

It is a cyclic number.

It is not a de Polignac number, because 497731889653 - 2¹³ = 497731881461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (497731889623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248865944826 + 248865944827.

It is an arithmetic number, because the mean of its divisors is an integer number (248865944827).

Almost surely, 2^497731889653 is an apocalyptic number.

It is an amenable number.

497731889653 is a deficient number, since it is larger than the sum of its proper divisors (1).

497731889653 is an equidigital number, since it uses as much as digits as its factorization.

497731889653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 274337280, while the sum is 70.

The spelling of 497731889653 in words is "four hundred ninety-seven billion, seven hundred thirty-one million, eight hundred eighty-nine thousand, six hundred fifty-three".