1444520101399 has 4 divisors (see below), whose sum is σ = 1444562695080. Its totient is φ = 1444477507720.

The previous prime is 1444520101397. The next prime is 1444520101403. The reversal of 1444520101399 is 9931010254441.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1444520101399 - 2¹ = 1444520101397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444520101397) 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 in 3 ways as a sum of consecutive naturals, for example, 21245929 + ... + 21313810.

It is an arithmetic number, because the mean of its divisors is an integer number (361140673770).

Almost surely, 2^{1444520101399} is an apocalyptic number.

1444520101399 is a deficient number, since it is larger than the sum of its proper divisors (42593681).

1444520101399 is an equidigital number, since it uses as much as digits as its factorization.

1444520101399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42593680.

The product of its (nonzero) digits is 155520, while the sum is 43.

The spelling of 1444520101399 in words is "one trillion, four hundred forty-four billion, five hundred twenty million, one hundred one thousand, three hundred ninety-nine".