497509390781363 has 2 divisors, whose sum is σ = 497509390781364. Its totient is φ = 497509390781362.

The previous prime is 497509390781357. The next prime is 497509390781503. The reversal of 497509390781363 is 363187093905794.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-497509390781363 is a prime.

It is not a weakly prime, because it can be changed into another prime (497509390681363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248754695390681 + 248754695390682.

It is an arithmetic number, because the mean of its divisors is an integer number (248754695390682).

Almost surely, 2^{497509390781363} is an apocalyptic number.

497509390781363 is a deficient number, since it is larger than the sum of its proper divisors (1).

497509390781363 is an equidigital number, since it uses as much as digits as its factorization.

497509390781363 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 925888320, while the sum is 74.

The spelling of 497509390781363 in words is "four hundred ninety-seven trillion, five hundred nine billion, three hundred ninety million, seven hundred eighty-one thousand, three hundred sixty-three".