6840580347 has 12 divisors (see below), whose sum is σ = 9889291464. Its totient is φ = 4556485440.

The previous prime is 6840580339. The next prime is 6840580381. The reversal of 6840580347 is 7430850486.

6840580347 is a `hidden beast` number, since 68 + 4 + 0 + 580 + 3 + 4 + 7 = 666.

It is not a de Polignac number, because 6840580347 - 2³ = 6840580339 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (6840580337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 313998 + ... + 335075.

It is an arithmetic number, because the mean of its divisors is an integer number (824107622).

Almost surely, 2^6840580347 is an apocalyptic number.

6840580347 is a deficient number, since it is larger than the sum of its proper divisors (3048711117).

6840580347 is a wasteful number, since it uses less digits than its factorization.

6840580347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650250 (or 650247 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The square root of 6840580347 is about 82707.8010045002. The cubic root of 6840580347 is about 1898.2976762575.

The spelling of 6840580347 in words is "six billion, eight hundred forty million, five hundred eighty thousand, three hundred forty-seven".