2834789686847 has 4 divisors (see below), whose sum is σ = 2850626500920. Its totient is φ = 2818952872776.

The previous prime is 2834789686837. The next prime is 2834789686853. The reversal of 2834789686847 is 7486869874382.

2834789686847 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 2834789686847 - 2¹⁰ = 2834789685823 is a prime.

It is a super-2 number, since 2×2834789686847² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2834789686837) 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, 7918406768 + ... + 7918407125.

It is an arithmetic number, because the mean of its divisors is an integer number (712656625230).

Almost surely, 2^{2834789686847} is an apocalyptic number.

2834789686847 is a deficient number, since it is larger than the sum of its proper divisors (15836814073).

2834789686847 is a wasteful number, since it uses less digits than its factorization.

2834789686847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15836814072.

The product of its digits is 6242697216, while the sum is 80.

The spelling of 2834789686847 in words is "two trillion, eight hundred thirty-four billion, seven hundred eighty-nine million, six hundred eighty-six thousand, eight hundred forty-seven".