54863945280461 has 2 divisors, whose sum is σ = 54863945280462. Its totient is φ = 54863945280460.

The previous prime is 54863945280439. The next prime is 54863945280479. The reversal of 54863945280461 is 16408254936845.

54863945280461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41337107207236 + 13526838073225 = 6429394^2 + 3677885^2 .

It is a cyclic number.

It is not a de Polignac number, because 54863945280461 - 2¹⁴ = 54863945264077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54863945280401) 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, 27431972640230 + 27431972640231.

It is an arithmetic number, because the mean of its divisors is an integer number (27431972640231).

Almost surely, 2^{54863945280461} is an apocalyptic number.

It is an amenable number.

54863945280461 is a deficient number, since it is larger than the sum of its proper divisors (1).

54863945280461 is an equidigital number, since it uses as much as digits as its factorization.

54863945280461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 199065600, while the sum is 65.

The spelling of 54863945280461 in words is "fifty-four trillion, eight hundred sixty-three billion, nine hundred forty-five million, two hundred eighty thousand, four hundred sixty-one".