6817834474147 has 4 divisors (see below), whose sum is σ = 6817839812176. Its totient is φ = 6817829136120.

The previous prime is 6817834474103. The next prime is 6817834474219. The reversal of 6817834474147 is 7414744387186.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6817834474147 is a prime.

It is a super-2 number, since 2×6817834474147² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6817834474247) 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, 505018 + ... + 3727024.

It is an arithmetic number, because the mean of its divisors is an integer number (1704459953044).

Almost surely, 2^{6817834474147} is an apocalyptic number.

6817834474147 is a deficient number, since it is larger than the sum of its proper divisors (5338029).

6817834474147 is a wasteful number, since it uses less digits than its factorization.

6817834474147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5338028.

The product of its digits is 101154816, while the sum is 64.

The spelling of 6817834474147 in words is "six trillion, eight hundred seventeen billion, eight hundred thirty-four million, four hundred seventy-four thousand, one hundred forty-seven".