847472877687 has 4 divisors (see below), whose sum is σ = 1129963836920. Its totient is φ = 564981918456.

The previous prime is 847472877677. The next prime is 847472877701. The reversal of 847472877687 is 786778274748.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 847472877687 - 2¹⁸ = 847472615543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (847472877617) 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 3 ways as a sum of consecutive naturals, for example, 141245479612 + ... + 141245479617.

It is an arithmetic number, because the mean of its divisors is an integer number (282490959230).

Almost surely, 2^847472877687 is an apocalyptic number.

847472877687 is a deficient number, since it is larger than the sum of its proper divisors (282490959233).

847472877687 is a wasteful number, since it uses less digits than its factorization.

847472877687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282490959232.

The product of its digits is 1652195328, while the sum is 75.

The spelling of 847472877687 in words is "eight hundred forty-seven billion, four hundred seventy-two million, eight hundred seventy-seven thousand, six hundred eighty-seven".