490317851529 has 75 divisors (see below), whose sum is σ = 806945099565. Its totient is φ = 296700184440.

The previous prime is 490317851473. The next prime is 490317851533. The reversal of 490317851529 is 925158713094.

It is a happy number.

The square root of 490317851529 is 700227.

It is a perfect power (a square), and thus also a powerful number.

490317851529 is a `hidden beast` number, since 4 + 9 + 0 + 31 + 7 + 85 + 1 + 529 = 666.

It is not a de Polignac number, because 490317851529 - 2²¹ = 490315754377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (490317851539) by changing a digit.

It is a polite number, since it can be written in 74 ways as a sum of consecutive naturals, for example, 762546882 + ... + 762547524.

Almost surely, 2^490317851529 is an apocalyptic number.

490317851529 is the 700227-th square number.

490317851529 is the 350114-th centered octagonal number.

It is an amenable number.

490317851529 is a deficient number, since it is larger than the sum of its proper divisors (316627248036).

490317851529 is an frugal number, since it uses more digits than its factorization.

490317851529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342 (or 657 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 54.

The spelling of 490317851529 in words is "four hundred ninety billion, three hundred seventeen million, eight hundred fifty-one thousand, five hundred twenty-nine".