6782347949 has 4 divisors (see below), whose sum is σ = 7304067036. Its totient is φ = 6260628864.

The previous prime is 6782347933. The next prime is 6782347969. The reversal of 6782347949 is 9497432876.

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 2032657225 + 4749690724 = 45085^2 + 68918^2 .

It is a cyclic number.

It is not a de Polignac number, because 6782347949 - 2⁴ = 6782347933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6782347969) 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, 260859524 + ... + 260859549.

It is an arithmetic number, because the mean of its divisors is an integer number (1826016759).

Almost surely, 2^6782347949 is an apocalyptic number.

It is an amenable number.

6782347949 is a deficient number, since it is larger than the sum of its proper divisors (521719087).

6782347949 is a wasteful number, since it uses less digits than its factorization.

6782347949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521719086.

The product of its digits is 18289152, while the sum is 59.

The square root of 6782347949 is about 82355.0116811357. The cubic root of 6782347949 is about 1892.8957178074.

The spelling of 6782347949 in words is "six billion, seven hundred eighty-two million, three hundred forty-seven thousand, nine hundred forty-nine".