30805409306 has 64 divisors (see below), whose sum is σ = 56056872960. Its totient is φ = 12412128960.

The previous prime is 30805409303. The next prime is 30805409363. The reversal of 30805409306 is 60390450803.

It is a self number, because there is not a number n which added to its sum of digits gives 30805409306.

It is not an unprimeable number, because it can be changed into a prime (30805409303) 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 31 ways as a sum of consecutive naturals, for example, 4453991 + ... + 4460901.

It is an arithmetic number, because the mean of its divisors is an integer number (875888640).

Almost surely, 2^30805409306 is an apocalyptic number.

30805409306 is a deficient number, since it is larger than the sum of its proper divisors (25251463654).

30805409306 is a wasteful number, since it uses less digits than its factorization.

30805409306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7179.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 30805409306 in words is "thirty billion, eight hundred five million, four hundred nine thousand, three hundred six".