497657957490 has 24 divisors (see below), whose sum is σ = 1293910689708. Its totient is φ = 132708788640.

The previous prime is 497657957471. The next prime is 497657957519. The reversal of 497657957490 is 94759756794.

497657957490 is a `hidden beast` number, since 4 + 9 + 7 + 6 + 579 + 5 + 7 + 49 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 452871123849 + 44786833641 = 672957^2 + 211629^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2764766341 + ... + 2764766520.

Almost surely, 2^497657957490 is an apocalyptic number.

497657957490 is an abundant number, since it is smaller than the sum of its proper divisors (796252732218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

497657957490 is a wasteful number, since it uses less digits than its factorization.

497657957490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5529532874 (or 5529532871 counting only the distinct ones).

The product of its (nonzero) digits is 600112800, while the sum is 72.

The spelling of 497657957490 in words is "four hundred ninety-seven billion, six hundred fifty-seven million, nine hundred fifty-seven thousand, four hundred ninety".