47845434665 has 16 divisors (see below), whose sum is σ = 66229840512. Its totient is φ = 32501675904.

The previous prime is 47845434643. The next prime is 47845434667. The reversal of 47845434665 is 56643454874.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47845434665 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47845434665.

It is not an unprimeable number, because it can be changed into a prime (47845434667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6384164 + ... + 6391653.

It is an arithmetic number, because the mean of its divisors is an integer number (4139365032).

Almost surely, 2^47845434665 is an apocalyptic number.

It is an amenable number.

47845434665 is a deficient number, since it is larger than the sum of its proper divisors (18384405847).

47845434665 is a wasteful number, since it uses less digits than its factorization.

47845434665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12775936.

The product of its digits is 38707200, while the sum is 56.

The spelling of 47845434665 in words is "forty-seven billion, eight hundred forty-five million, four hundred thirty-four thousand, six hundred sixty-five".