6388244081273 has 2 divisors, whose sum is σ = 6388244081274. Its totient is φ = 6388244081272.

The previous prime is 6388244081257. The next prime is 6388244081287. The reversal of 6388244081273 is 3721804428836.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5338627439209 + 1049616642064 = 2310547^2 + 1024508^2 .

It is a cyclic number.

It is not a de Polignac number, because 6388244081273 - 2⁴ = 6388244081257 is a prime.

It is not a weakly prime, because it can be changed into another prime (6388244081213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3194122040636 + 3194122040637.

It is an arithmetic number, because the mean of its divisors is an integer number (3194122040637).

Almost surely, 2^{6388244081273} is an apocalyptic number.

It is an amenable number.

6388244081273 is a deficient number, since it is larger than the sum of its proper divisors (1).

6388244081273 is an equidigital number, since it uses as much as digits as its factorization.

6388244081273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12386304, while the sum is 56.

The spelling of 6388244081273 in words is "six trillion, three hundred eighty-eight billion, two hundred forty-four million, eighty-one thousand, two hundred seventy-three".