53744810993 has 2 divisors, whose sum is σ = 53744810994. Its totient is φ = 53744810992.

The previous prime is 53744810963. The next prime is 53744811077. The reversal of 53744810993 is 39901844735.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31278398449 + 22466412544 = 176857^2 + 149888^2 .

It is a cyclic number.

It is not a de Polignac number, because 53744810993 - 2⁶ = 53744810929 is a prime.

It is not a weakly prime, because it can be changed into another prime (53744810923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26872405496 + 26872405497.

It is an arithmetic number, because the mean of its divisors is an integer number (26872405497).

Almost surely, 2^53744810993 is an apocalyptic number.

It is an amenable number.

53744810993 is a deficient number, since it is larger than the sum of its proper divisors (1).

53744810993 is an equidigital number, since it uses as much as digits as its factorization.

53744810993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3265920, while the sum is 53.

The spelling of 53744810993 in words is "fifty-three billion, seven hundred forty-four million, eight hundred ten thousand, nine hundred ninety-three".