51204315043457 has 2 divisors, whose sum is σ = 51204315043458. Its totient is φ = 51204315043456.

The previous prime is 51204315043417. The next prime is 51204315043463. The reversal of 51204315043457 is 75434051340215.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32215602422641 + 18988712620816 = 5675879^2 + 4357604^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51204315043457 is a prime.

It is not a weakly prime, because it can be changed into another prime (51204315043417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25602157521728 + 25602157521729.

It is an arithmetic number, because the mean of its divisors is an integer number (25602157521729).

Almost surely, 2^{51204315043457} is an apocalyptic number.

It is an amenable number.

51204315043457 is a deficient number, since it is larger than the sum of its proper divisors (1).

51204315043457 is an equidigital number, since it uses as much as digits as its factorization.

51204315043457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008000, while the sum is 44.

The spelling of 51204315043457 in words is "fifty-one trillion, two hundred four billion, three hundred fifteen million, forty-three thousand, four hundred fifty-seven".