1444388938375 has 16 divisors (see below), whose sum is σ = 1851316249536. Its totient is φ = 1124281116000.

The previous prime is 1444388938339. The next prime is 1444388938439. The reversal of 1444388938375 is 5738398834441.

It is not a de Polignac number, because 1444388938375 - 2³³ = 1435799003783 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1444388938375.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156145531 + ... + 156154780.

It is an arithmetic number, because the mean of its divisors is an integer number (115707265596).

Almost surely, 2^{1444388938375} is an apocalyptic number.

1444388938375 is a deficient number, since it is larger than the sum of its proper divisors (406927311161).

1444388938375 is an equidigital number, since it uses as much as digits as its factorization.

1444388938375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312300363 (or 312300353 counting only the distinct ones).

The product of its digits is 278691840, while the sum is 67.

The spelling of 1444388938375 in words is "one trillion, four hundred forty-four billion, three hundred eighty-eight million, nine hundred thirty-eight thousand, three hundred seventy-five".