497633653549 has 2 divisors, whose sum is σ = 497633653550. Its totient is φ = 497633653548.

The previous prime is 497633653513. The next prime is 497633653597. The reversal of 497633653549 is 945356336794.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 347489028324 + 150144625225 = 589482^2 + 387485^2 .

It is a cyclic number.

It is not a de Polignac number, because 497633653549 - 2³⁷ = 360194700077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (497633651549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248816826774 + 248816826775.

It is an arithmetic number, because the mean of its divisors is an integer number (248816826775).

Almost surely, 2^497633653549 is an apocalyptic number.

It is an amenable number.

497633653549 is a deficient number, since it is larger than the sum of its proper divisors (1).

497633653549 is an equidigital number, since it uses as much as digits as its factorization.

497633653549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 220449600, while the sum is 64.

The spelling of 497633653549 in words is "four hundred ninety-seven billion, six hundred thirty-three million, six hundred fifty-three thousand, five hundred forty-nine".