1444552441021 has 4 divisors (see below), whose sum is σ = 1458052931232. Its totient is φ = 1431051950812.

The previous prime is 1444552440997. The next prime is 1444552441037. The reversal of 1444552441021 is 1201442554441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1444552441021 - 2²⁷ = 1444418223293 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 (1444552441081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6750244945 + ... + 6750245158.

It is an arithmetic number, because the mean of its divisors is an integer number (364513232808).

Almost surely, 2^{1444552441021} is an apocalyptic number.

It is an amenable number.

1444552441021 is a deficient number, since it is larger than the sum of its proper divisors (13500490211).

1444552441021 is a wasteful number, since it uses less digits than its factorization.

1444552441021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13500490210.

The product of its (nonzero) digits is 102400, while the sum is 37.

Adding to 1444552441021 its reverse (1201442554441), we get a palindrome (2645994995462).

The spelling of 1444552441021 in words is "one trillion, four hundred forty-four billion, five hundred fifty-two million, four hundred forty-one thousand, twenty-one".