30708309309 has 8 divisors (see below), whose sum is σ = 42724604352. Its totient is φ = 19582110240.

The previous prime is 30708309271. The next prime is 30708309319. The reversal of 30708309309 is 90390380703.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30708309309 - 2⁸ = 30708309053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30708309319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222523912 + ... + 222524049.

It is an arithmetic number, because the mean of its divisors is an integer number (5340575544).

Almost surely, 2^30708309309 is an apocalyptic number.

It is an amenable number.

30708309309 is a deficient number, since it is larger than the sum of its proper divisors (12016295043).

30708309309 is a wasteful number, since it uses less digits than its factorization.

30708309309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445047987.

The product of its (nonzero) digits is 122472, while the sum is 42.

The spelling of 30708309309 in words is "thirty billion, seven hundred eight million, three hundred nine thousand, three hundred nine".