497075628868909 has 2 divisors, whose sum is σ = 497075628868910. Its totient is φ = 497075628868908.

The previous prime is 497075628868859. The next prime is 497075628869009. The reversal of 497075628868909 is 909868826570794.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 493376942168100 + 3698686700809 = 22212090^2 + 1923197^2 .

It is a cyclic number.

It is not a de Polignac number, because 497075628868909 - 2¹³ = 497075628860717 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 497075628868909.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (497075628868409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248537814434454 + 248537814434455.

It is an arithmetic number, because the mean of its divisors is an integer number (248537814434455).

Almost surely, 2^{497075628868909} is an apocalyptic number.

It is an amenable number.

497075628868909 is a deficient number, since it is larger than the sum of its proper divisors (1).

497075628868909 is an equidigital number, since it uses as much as digits as its factorization.

497075628868909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26336378880, while the sum is 88.

The spelling of 497075628868909 in words is "four hundred ninety-seven trillion, seventy-five billion, six hundred twenty-eight million, eight hundred sixty-eight thousand, nine hundred nine".