12784541847 has 16 divisors (see below), whose sum is σ = 21252225792. Its totient is φ = 6641320320.

The previous prime is 12784541839. The next prime is 12784541851. The reversal of 12784541847 is 74814548721.

It is not a de Polignac number, because 12784541847 - 2³ = 12784541839 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12784541847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12784541867) 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, 27671938 + ... + 27672399.

It is an arithmetic number, because the mean of its divisors is an integer number (1328264112).

Almost surely, 2^12784541847 is an apocalyptic number.

12784541847 is a deficient number, since it is larger than the sum of its proper divisors (8467683945).

12784541847 is a wasteful number, since it uses less digits than its factorization.

12784541847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55344358.

The product of its digits is 2007040, while the sum is 51.

The spelling of 12784541847 in words is "twelve billion, seven hundred eighty-four million, five hundred forty-one thousand, eight hundred forty-seven".