51368436754757 has 2 divisors, whose sum is σ = 51368436754758. Its totient is φ = 51368436754756.

The previous prime is 51368436754751. The next prime is 51368436754769. The reversal of 51368436754757 is 75745763486315.

It is a happy number.

51368436754757 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36480561127396 + 14887875627361 = 6039914^2 + 3858481^2 .

It is a cyclic number.

It is not a de Polignac number, because 51368436754757 - 2³⁶ = 51299717278021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51368436754751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25684218377378 + 25684218377379.

It is an arithmetic number, because the mean of its divisors is an integer number (25684218377379).

Almost surely, 2^{51368436754757} is an apocalyptic number.

It is an amenable number.

51368436754757 is a deficient number, since it is larger than the sum of its proper divisors (1).

51368436754757 is an equidigital number, since it uses as much as digits as its factorization.

51368436754757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1778112000, while the sum is 71.

The spelling of 51368436754757 in words is "fifty-one trillion, three hundred sixty-eight billion, four hundred thirty-six million, seven hundred fifty-four thousand, seven hundred fifty-seven".