6853749653 has 2 divisors, whose sum is σ = 6853749654. Its totient is φ = 6853749652.

The previous prime is 6853749629. The next prime is 6853749671. The reversal of 6853749653 is 3569473586.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5946414769 + 907334884 = 77113^2 + 30122^2 .

It is a cyclic number.

It is not a de Polignac number, because 6853749653 - 2²⁰ = 6852701077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6853740653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3426874826 + 3426874827.

It is an arithmetic number, because the mean of its divisors is an integer number (3426874827).

Almost surely, 2^6853749653 is an apocalyptic number.

It is an amenable number.

6853749653 is a deficient number, since it is larger than the sum of its proper divisors (1).

6853749653 is an equidigital number, since it uses as much as digits as its factorization.

6853749653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16329600, while the sum is 56.

The square root of 6853749653 is about 82787.3761693170. The cubic root of 6853749653 is about 1899.5150796650.

The spelling of 6853749653 in words is "six billion, eight hundred fifty-three million, seven hundred forty-nine thousand, six hundred fifty-three".