6817405147 has 16 divisors (see below), whose sum is σ = 7897715712. Its totient is φ = 5764187520.

The previous prime is 6817405139. The next prime is 6817405159. The reversal of 6817405147 is 7415047186.

It is not a de Polignac number, because 6817405147 - 2³ = 6817405139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6817405547) 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, 146478 + ... + 187324.

It is an arithmetic number, because the mean of its divisors is an integer number (493607232).

Almost surely, 2^6817405147 is an apocalyptic number.

6817405147 is a deficient number, since it is larger than the sum of its proper divisors (1080310565).

6817405147 is a wasteful number, since it uses less digits than its factorization.

6817405147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41178.

The product of its (nonzero) digits is 188160, while the sum is 43.

The square root of 6817405147 is about 82567.5792729810. The cubic root of 6817405147 is about 1896.1515033906.

The spelling of 6817405147 in words is "six billion, eight hundred seventeen million, four hundred five thousand, one hundred forty-seven".