509490453796 has 9 divisors (see below), whose sum is σ = 891610792401. Its totient is φ = 254744513112.

The previous prime is 509490453673. The next prime is 509490453809. The reversal of 509490453796 is 697354094905.

The square root of 509490453796 is 713786.

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

It can be written as a sum of positive squares in only one way, i.e., 506730422500 + 2760031296 = 711850^2 + 52536^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1249126 + ... + 1606018.

Almost surely, 2^509490453796 is an apocalyptic number.

509490453796 is the 713786-th square number.

It is an amenable number.

509490453796 is a deficient number, since it is larger than the sum of its proper divisors (382120338605).

509490453796 is an frugal number, since it uses more digits than its factorization.

509490453796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713790 (or 356895 counting only the distinct ones).

The product of its (nonzero) digits is 36741600, while the sum is 61.

The spelling of 509490453796 in words is "five hundred nine billion, four hundred ninety million, four hundred fifty-three thousand, seven hundred ninety-six".