51012783129089 has 2 divisors, whose sum is σ = 51012783129090. Its totient is φ = 51012783129088.

The previous prime is 51012783129029. The next prime is 51012783129167. The reversal of 51012783129089 is 98092138721015.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49829593944064 + 1183189185025 = 7059008^2 + 1087745^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51012783129089 is a prime.

It is not a weakly prime, because it can be changed into another prime (51012783129029) 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, 25506391564544 + 25506391564545.

It is an arithmetic number, because the mean of its divisors is an integer number (25506391564545).

Almost surely, 2^{51012783129089} is an apocalyptic number.

It is an amenable number.

51012783129089 is a deficient number, since it is larger than the sum of its proper divisors (1).

51012783129089 is an equidigital number, since it uses as much as digits as its factorization.

51012783129089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2177280, while the sum is 56.

The spelling of 51012783129089 in words is "fifty-one trillion, twelve billion, seven hundred eighty-three million, one hundred twenty-nine thousand, eighty-nine".