51199680243037 has 2 divisors, whose sum is σ = 51199680243038. Its totient is φ = 51199680243036.

The previous prime is 51199680243001. The next prime is 51199680243163. The reversal of 51199680243037 is 73034208699115.

It is a happy number.

51199680243037 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., 50704354248601 + 495325994436 = 7120699^2 + 703794^2 .

It is a cyclic number.

It is not a de Polignac number, because 51199680243037 - 2⁴³ = 42403587220829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51199680843037) 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, 25599840121518 + 25599840121519.

It is an arithmetic number, because the mean of its divisors is an integer number (25599840121519).

It is a 1-persistent number, because it is pandigital, but 2⋅51199680243037 = 102399360486074 is not.

Almost surely, 2^{51199680243037} is an apocalyptic number.

It is an amenable number.

51199680243037 is a deficient number, since it is larger than the sum of its proper divisors (1).

51199680243037 is an equidigital number, since it uses as much as digits as its factorization.

51199680243037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9797760, while the sum is 58.

The spelling of 51199680243037 in words is "fifty-one trillion, one hundred ninety-nine billion, six hundred eighty million, two hundred forty-three thousand, thirty-seven".