6599369849 has 2 divisors, whose sum is σ = 6599369850. Its totient is φ = 6599369848.

The previous prime is 6599369813. The next prime is 6599369863. The reversal of 6599369849 is 9489639956.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4727250025 + 1872119824 = 68755^2 + 43268^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6599369849 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (6599369899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3299684924 + 3299684925.

It is an arithmetic number, because the mean of its divisors is an integer number (3299684925).

Almost surely, 2^6599369849 is an apocalyptic number.

It is an amenable number.

6599369849 is a deficient number, since it is larger than the sum of its proper divisors (1).

6599369849 is an equidigital number, since it uses as much as digits as its factorization.

6599369849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113374080, while the sum is 68.

The square root of 6599369849 is about 81236.5056424758. The cubic root of 6599369849 is about 1875.7177553336.

The spelling of 6599369849 in words is "six billion, five hundred ninety-nine million, three hundred sixty-nine thousand, eight hundred forty-nine".