6724694849 has 2 divisors, whose sum is σ = 6724694850. Its totient is φ = 6724694848.

The previous prime is 6724694791. The next prime is 6724694881. The reversal of 6724694849 is 9484964276.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4583967025 + 2140727824 = 67705^2 + 46268^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6724694849 is a prime.

It is not a weakly prime, because it can be changed into another prime (6724694549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3362347424 + 3362347425.

It is an arithmetic number, because the mean of its divisors is an integer number (3362347425).

Almost surely, 2^6724694849 is an apocalyptic number.

It is an amenable number.

6724694849 is a deficient number, since it is larger than the sum of its proper divisors (1).

6724694849 is an equidigital number, since it uses as much as digits as its factorization.

6724694849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20901888, while the sum is 59.

The square root of 6724694849 is about 82004.2367746935. The cubic root of 6724694849 is about 1887.5169513499.

The spelling of 6724694849 in words is "six billion, seven hundred twenty-four million, six hundred ninety-four thousand, eight hundred forty-nine".