2144445091967 has 4 divisors (see below), whose sum is σ = 2237681835120. Its totient is φ = 2051208348816.

The previous prime is 2144445091951. The next prime is 2144445091979. The reversal of 2144445091967 is 7691905444412.

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

It is a cyclic number.

It is not a de Polignac number, because 2144445091967 - 2⁴ = 2144445091951 is a prime.

It is a super-2 number, since 2×2144445091967² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144445091567) 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, 46618371542 + ... + 46618371587.

It is an arithmetic number, because the mean of its divisors is an integer number (559420458780).

Almost surely, 2^{2144445091967} is an apocalyptic number.

2144445091967 is a deficient number, since it is larger than the sum of its proper divisors (93236743153).

2144445091967 is an equidigital number, since it uses as much as digits as its factorization.

2144445091967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93236743152.

The product of its (nonzero) digits is 8709120, while the sum is 56.

The spelling of 2144445091967 in words is "two trillion, one hundred forty-four billion, four hundred forty-five million, ninety-one thousand, nine hundred sixty-seven".