14444221001257 has 2 divisors, whose sum is σ = 14444221001258. Its totient is φ = 14444221001256.

The previous prime is 14444221001239. The next prime is 14444221001341. The reversal of 14444221001257 is 75210012244441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13576601406736 + 867619594521 = 3684644^2 + 931461^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14444221001257 is a prime.

It is not a weakly prime, because it can be changed into another prime (14444221001557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7222110500628 + 7222110500629.

It is an arithmetic number, because the mean of its divisors is an integer number (7222110500629).

Almost surely, 2^{14444221001257} is an apocalyptic number.

It is an amenable number.

14444221001257 is a deficient number, since it is larger than the sum of its proper divisors (1).

14444221001257 is an equidigital number, since it uses as much as digits as its factorization.

14444221001257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 71680, while the sum is 37.

Adding to 14444221001257 its reverse (75210012244441), we get a palindrome (89654233245698).

The spelling of 14444221001257 in words is "fourteen trillion, four hundred forty-four billion, two hundred twenty-one million, one thousand, two hundred fifty-seven".