509633220996 has 81 divisors (see below), whose sum is σ = 1319372135991. Its totient is φ = 165867128784.

The previous prime is 509633220991. The next prime is 509633221007. The reversal of 509633220996 is 699022336905.

The square root of 509633220996 is 713886.

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

It is not an unprimeable number, because it can be changed into a prime (509633220991) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 184181205 + ... + 184183971.

Almost surely, 2^509633220996 is an apocalyptic number.

509633220996 is the 713886-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 509633220996

509633220996 is an abundant number, since it is smaller than the sum of its proper divisors (809738914995).

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

509633220996 is an equidigital number, since it uses as much as digits as its factorization.

509633220996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5630 (or 2815 counting only the distinct ones).

The product of its (nonzero) digits is 4723920, while the sum is 54.

The spelling of 509633220996 in words is "five hundred nine billion, six hundred thirty-three million, two hundred twenty thousand, nine hundred ninety-six".