6839702046217 has 4 divisors (see below), whose sum is σ = 6839739053460. Its totient is φ = 6839665038976.

The previous prime is 6839702046209. The next prime is 6839702046241. The reversal of 6839702046217 is 7126402079386.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3043084869136 + 3796617177081 = 1744444^2 + 1948491^2 .

It is a cyclic number.

It is not a de Polignac number, because 6839702046217 - 2³ = 6839702046209 is a prime.

It is a super-2 number, since 2×6839702046217² (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 (6839702046017) 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, 18224992 + ... + 18596497.

It is an arithmetic number, because the mean of its divisors is an integer number (1709934763365).

Almost surely, 2^{6839702046217} is an apocalyptic number.

It is an amenable number.

6839702046217 is a deficient number, since it is larger than the sum of its proper divisors (37007243).

6839702046217 is a wasteful number, since it uses less digits than its factorization.

6839702046217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37007242.

The product of its (nonzero) digits is 6096384, while the sum is 55.

The spelling of 6839702046217 in words is "six trillion, eight hundred thirty-nine billion, seven hundred two million, forty-six thousand, two hundred seventeen".