30209568481 has 9 divisors (see below), whose sum is σ = 30410598673. Its totient is φ = 30009861940.

The previous prime is 30209568469. The next prime is 30209568503. The reversal of 30209568481 is 18486590203.

The square root of 30209568481 is 173809.

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

It is a de Polignac number, because none of the positive numbers 2^k-30209568481 is a prime.

It is a super-2 number, since 2×30209568481² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30209568401) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 31111326 + ... + 31112296.

Almost surely, 2^30209568481 is an apocalyptic number.

30209568481 is the 173809-th square number.

30209568481 is the 86905-th centered octagonal number.

It is an amenable number.

30209568481 is a deficient number, since it is larger than the sum of its proper divisors (201030192).

30209568481 is an frugal number, since it uses more digits than its factorization.

30209568481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2300 (or 1150 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 46.

The spelling of 30209568481 in words is "thirty billion, two hundred nine million, five hundred sixty-eight thousand, four hundred eighty-one".