2144445091969 has 8 divisors (see below), whose sum is σ = 2146453119200. Its totient is φ = 2142437242176.

The previous prime is 2144445091951. The next prime is 2144445091979. The reversal of 2144445091969 is 9691905444412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2144445091969 - 2¹¹ = 2144445089921 is a prime.

It is a super-2 number, since 2×2144445091969² (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 (2144445091939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45850054 + ... + 45896800.

It is an arithmetic number, because the mean of its divisors is an integer number (268306639900).

Almost surely, 2^{2144445091969} is an apocalyptic number.

It is an amenable number.

2144445091969 is a deficient number, since it is larger than the sum of its proper divisors (2008027231).

2144445091969 is a wasteful number, since it uses less digits than its factorization.

2144445091969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88719.

The product of its (nonzero) digits is 11197440, while the sum is 58.

The spelling of 2144445091969 in words is "two trillion, one hundred forty-four billion, four hundred forty-five million, ninety-one thousand, nine hundred sixty-nine".