53645242622369 has 2 divisors, whose sum is σ = 53645242622370. Its totient is φ = 53645242622368.

The previous prime is 53645242622339. The next prime is 53645242622401. The reversal of 53645242622369 is 96322624254635.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45737966110225 + 7907276512144 = 6762985^2 + 2811988^2 .

It is a cyclic number.

It is not a de Polignac number, because 53645242622369 - 2¹⁶ = 53645242556833 is a prime.

It is a super-2 number, since 2×53645242622369² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (53645242622339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26822621311184 + 26822621311185.

It is an arithmetic number, because the mean of its divisors is an integer number (26822621311185).

Almost surely, 2^{53645242622369} is an apocalyptic number.

It is an amenable number.

53645242622369 is a deficient number, since it is larger than the sum of its proper divisors (1).

53645242622369 is an equidigital number, since it uses as much as digits as its factorization.

53645242622369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 111974400, while the sum is 59.

The spelling of 53645242622369 in words is "fifty-three trillion, six hundred forty-five billion, two hundred forty-two million, six hundred twenty-two thousand, three hundred sixty-nine".