847679655019 has 4 divisors (see below), whose sum is σ = 848223389520. Its totient is φ = 847135920520.

The previous prime is 847679654993. The next prime is 847679655077. The reversal of 847679655019 is 910556976748.

847679655019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 847679655019 - 2¹¹ = 847679652971 is a prime.

It is a super-2 number, since 2×847679655019² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (847679655419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271864912 + ... + 271868029.

It is an arithmetic number, because the mean of its divisors is an integer number (212055847380).

Almost surely, 2^847679655019 is an apocalyptic number.

847679655019 is a deficient number, since it is larger than the sum of its proper divisors (543734501).

847679655019 is a wasteful number, since it uses less digits than its factorization.

847679655019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543734500.

The product of its (nonzero) digits is 114307200, while the sum is 67.

The spelling of 847679655019 in words is "eight hundred forty-seven billion, six hundred seventy-nine million, six hundred fifty-five thousand, nineteen".