54216311362709 has 2 divisors, whose sum is σ = 54216311362710. Its totient is φ = 54216311362708.

The previous prime is 54216311362673. The next prime is 54216311362757. The reversal of 54216311362709 is 90726311361245.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42693443496484 + 11522867866225 = 6534022^2 + 3394535^2 .

It is a cyclic number.

It is not a de Polignac number, because 54216311362709 - 2¹² = 54216311358613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54216311365709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27108155681354 + 27108155681355.

It is an arithmetic number, because the mean of its divisors is an integer number (27108155681355).

Almost surely, 2^{54216311362709} is an apocalyptic number.

It is an amenable number.

54216311362709 is a deficient number, since it is larger than the sum of its proper divisors (1).

54216311362709 is an equidigital number, since it uses as much as digits as its factorization.

54216311362709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1632960, while the sum is 50.

The spelling of 54216311362709 in words is "fifty-four trillion, two hundred sixteen billion, three hundred eleven million, three hundred sixty-two thousand, seven hundred nine".