497760659819521 has 96 divisors (see below), whose sum is σ = 621881995295232. Its totient is φ = 389916568903680.

The previous prime is 497760659819513. The next prime is 497760659819551. The reversal of 497760659819521 is 125918956067794.

It is not a de Polignac number, because 497760659819521 - 2³ = 497760659819513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (497760659819551) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 135592659516 + ... + 135592663186.

It is an arithmetic number, because the mean of its divisors is an integer number (6477937450992).

Almost surely, 2^{497760659819521} is an apocalyptic number.

It is an amenable number.

497760659819521 is a deficient number, since it is larger than the sum of its proper divisors (124121335475711).

497760659819521 is a wasteful number, since it uses less digits than its factorization.

497760659819521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6899 (or 6882 counting only the distinct ones).

The product of its (nonzero) digits is 2057529600, while the sum is 79.

The spelling of 497760659819521 in words is "four hundred ninety-seven trillion, seven hundred sixty billion, six hundred fifty-nine million, eight hundred nineteen thousand, five hundred twenty-one".