30668625309 has 16 divisors (see below), whose sum is σ = 46735953920. Its totient is φ = 17523874800.

The previous prime is 30668625259. The next prime is 30668625319. The reversal of 30668625309 is 90352686603.

It is not a de Polignac number, because 30668625309 - 2⁹ = 30668624797 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30668625319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 435084 + ... + 500634.

It is an arithmetic number, because the mean of its divisors is an integer number (2920997120).

Almost surely, 2^30668625309 is an apocalyptic number.

It is an amenable number.

30668625309 is a deficient number, since it is larger than the sum of its proper divisors (16067328611).

30668625309 is a wasteful number, since it uses less digits than its factorization.

30668625309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87840.

The product of its (nonzero) digits is 1399680, while the sum is 48.

The spelling of 30668625309 in words is "thirty billion, six hundred sixty-eight million, six hundred twenty-five thousand, three hundred nine".