30805000047 has 6 divisors (see below), whose sum is σ = 44496111192. Its totient is φ = 20536666692.

The previous prime is 30805000027. The next prime is 30805000063. The reversal of 30805000047 is 74000050803.

It is not a de Polignac number, because 30805000047 - 2¹² = 30804995951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30805000027) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1711388883 + ... + 1711388900.

It is an arithmetic number, because the mean of its divisors is an integer number (7416018532).

Almost surely, 2^30805000047 is an apocalyptic number.

30805000047 is a deficient number, since it is larger than the sum of its proper divisors (13691111145).

30805000047 is a wasteful number, since it uses less digits than its factorization.

30805000047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3422777789 (or 3422777786 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The spelling of 30805000047 in words is "thirty billion, eight hundred five million, forty-seven", and thus it is an aban number.