51450068742593 has 2 divisors, whose sum is σ = 51450068742594. Its totient is φ = 51450068742592.

The previous prime is 51450068742533. The next prime is 51450068742643. The reversal of 51450068742593 is 39524786005415.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45172002304144 + 6278066438449 = 6721012^2 + 2505607^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51450068742593 is a prime.

It is not a weakly prime, because it can be changed into another prime (51450068742533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25725034371296 + 25725034371297.

It is an arithmetic number, because the mean of its divisors is an integer number (25725034371297).

It is a 2-persistent number, because it is pandigital, and so is 2⋅51450068742593 = 102900137485186, but 3⋅51450068742593 = 154350206227779 is not.

Almost surely, 2^{51450068742593} is an apocalyptic number.

It is an amenable number.

51450068742593 is a deficient number, since it is larger than the sum of its proper divisors (1).

51450068742593 is an equidigital number, since it uses as much as digits as its factorization.

51450068742593 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288000, while the sum is 59.

The spelling of 51450068742593 in words is "fifty-one trillion, four hundred fifty billion, sixty-eight million, seven hundred forty-two thousand, five hundred ninety-three".