54778715361841 has 2 divisors, whose sum is σ = 54778715361842. Its totient is φ = 54778715361840.

The previous prime is 54778715361761. The next prime is 54778715361947. The reversal of 54778715361841 is 14816351787745.

54778715361841 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., 53677309190400 + 1101406171441 = 7326480^2 + 1049479^2 .

It is a cyclic number.

It is not a de Polignac number, because 54778715361841 - 2¹¹ = 54778715359793 is a prime.

It is not a weakly prime, because it can be changed into another prime (54778715362841) 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, 27389357680920 + 27389357680921.

It is an arithmetic number, because the mean of its divisors is an integer number (27389357680921).

Almost surely, 2^{54778715361841} is an apocalyptic number.

It is an amenable number.

54778715361841 is a deficient number, since it is larger than the sum of its proper divisors (1).

54778715361841 is an equidigital number, since it uses as much as digits as its factorization.

54778715361841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 158054400, while the sum is 67.

The spelling of 54778715361841 in words is "fifty-four trillion, seven hundred seventy-eight billion, seven hundred fifteen million, three hundred sixty-one thousand, eight hundred forty-one".