30648030209 has 2 divisors, whose sum is σ = 30648030210. Its totient is φ = 30648030208.

The previous prime is 30648030167. The next prime is 30648030221. The reversal of 30648030209 is 90203084603.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15643005184 + 15005025025 = 125072^2 + 122495^2 .

It is a cyclic number.

It is not a de Polignac number, because 30648030209 - 2¹² = 30648026113 is a prime.

It is not a weakly prime, because it can be changed into another prime (30648030269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15324015104 + 15324015105.

It is an arithmetic number, because the mean of its divisors is an integer number (15324015105).

Almost surely, 2^30648030209 is an apocalyptic number.

It is an amenable number.

30648030209 is a deficient number, since it is larger than the sum of its proper divisors (1).

30648030209 is an equidigital number, since it uses as much as digits as its factorization.

30648030209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 35.

The spelling of 30648030209 in words is "thirty billion, six hundred forty-eight million, thirty thousand, two hundred nine".