1444187005417 has 4 divisors (see below), whose sum is σ = 1555278313540. Its totient is φ = 1333095697296.

The previous prime is 1444187005343. The next prime is 1444187005427. The reversal of 1444187005417 is 7145007814441.

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

It can be written as a sum of positive squares in 2 ways, for example, as 592647466896 + 851539538521 = 769836^2 + 922789^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1444187005417 is a prime.

It is a super-2 number, since 2×1444187005417² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1444187005427) 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, 55545654042 + ... + 55545654067.

It is an arithmetic number, because the mean of its divisors is an integer number (388819578385).

Almost surely, 2^{1444187005417} is an apocalyptic number.

It is an amenable number.

1444187005417 is a deficient number, since it is larger than the sum of its proper divisors (111091308123).

1444187005417 is a wasteful number, since it uses less digits than its factorization.

1444187005417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111091308122.

The product of its (nonzero) digits is 501760, while the sum is 46.

The spelling of 1444187005417 in words is "one trillion, four hundred forty-four billion, one hundred eighty-seven million, five thousand, four hundred seventeen".