30345515205 has 32 divisors (see below), whose sum is σ = 49206787200. Its totient is φ = 15967091712.

The previous prime is 30345515203. The next prime is 30345515261. The reversal of 30345515205 is 50251554303.

It is a happy number.

It is not a de Polignac number, because 30345515205 - 2¹ = 30345515203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30345515203) 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, 585226 + ... + 634964.

It is an arithmetic number, because the mean of its divisors is an integer number (1537712100).

Almost surely, 2^30345515205 is an apocalyptic number.

It is an amenable number.

30345515205 is a deficient number, since it is larger than the sum of its proper divisors (18861271995).

30345515205 is a wasteful number, since it uses less digits than its factorization.

30345515205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50293.

The product of its (nonzero) digits is 45000, while the sum is 33.

The spelling of 30345515205 in words is "thirty billion, three hundred forty-five million, five hundred fifteen thousand, two hundred five".