51180785523029 has 2 divisors, whose sum is σ = 51180785523030. Its totient is φ = 51180785523028.

The previous prime is 51180785523001. The next prime is 51180785523079. The reversal of 51180785523029 is 92032558708115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27870216600625 + 23310568922404 = 5279225^2 + 4828102^2 .

It is a cyclic number.

It is not a de Polignac number, because 51180785523029 - 2²⁸ = 51180517087573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51180785523079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25590392761514 + 25590392761515.

It is an arithmetic number, because the mean of its divisors is an integer number (25590392761515).

Almost surely, 2^{51180785523029} is an apocalyptic number.

It is an amenable number.

51180785523029 is a deficient number, since it is larger than the sum of its proper divisors (1).

51180785523029 is an equidigital number, since it uses as much as digits as its factorization.

51180785523029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048000, while the sum is 56.

The spelling of 51180785523029 in words is "fifty-one trillion, one hundred eighty billion, seven hundred eighty-five million, five hundred twenty-three thousand, twenty-nine".