1444745921541 has 16 divisors (see below), whose sum is σ = 2164702920576. Its totient is φ = 850419003456.

The previous prime is 1444745921539. The next prime is 1444745921579. The reversal of 1444745921541 is 1451295474441.

It is not a de Polignac number, because 1444745921541 - 2¹ = 1444745921539 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444745921501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 805320130 + ... + 805321923.

It is an arithmetic number, because the mean of its divisors is an integer number (135293932536).

Almost surely, 2^{1444745921541} is an apocalyptic number.

It is an amenable number.

1444745921541 is a deficient number, since it is larger than the sum of its proper divisors (719956999035).

1444745921541 is a wasteful number, since it uses less digits than its factorization.

1444745921541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1610642092.

The product of its digits is 3225600, while the sum is 51.

The spelling of 1444745921541 in words is "one trillion, four hundred forty-four billion, seven hundred forty-five million, nine hundred twenty-one thousand, five hundred forty-one".