30930649209 has 6 divisors (see below), whose sum is σ = 44677604426. Its totient is φ = 20620432800.

The previous prime is 30930649171. The next prime is 30930649223. The reversal of 30930649209 is 90294603903.

It can be written as a sum of positive squares in only one way, i.e., 26634240000 + 4296409209 = 163200^2 + 65547^2 .

It is not a de Polignac number, because 30930649209 - 2²⁰ = 30929600633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30930649259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1718369392 + ... + 1718369409.

Almost surely, 2^30930649209 is an apocalyptic number.

It is an amenable number.

30930649209 is a deficient number, since it is larger than the sum of its proper divisors (13746955217).

30930649209 is a wasteful number, since it uses less digits than its factorization.

30930649209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3436738807 (or 3436738804 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 45.

The spelling of 30930649209 in words is "thirty billion, nine hundred thirty million, six hundred forty-nine thousand, two hundred nine".