2144493942079 has 4 divisors (see below), whose sum is σ = 2153941052184. Its totient is φ = 2135046831976.

The previous prime is 2144493942053. The next prime is 2144493942131. The reversal of 2144493942079 is 9702493944412.

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 2144493942079 - 2¹⁹ = 2144493417791 is a prime.

It is a super-2 number, since 2×2144493942079² (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 (2144493942179) 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, 4723554712 + ... + 4723555165.

It is an arithmetic number, because the mean of its divisors is an integer number (538485263046).

Almost surely, 2^{2144493942079} is an apocalyptic number.

2144493942079 is a deficient number, since it is larger than the sum of its proper divisors (9447110105).

2144493942079 is an equidigital number, since it uses as much as digits as its factorization.

2144493942079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9447110104.

The product of its (nonzero) digits is 15676416, while the sum is 58.

The spelling of 2144493942079 in words is "two trillion, one hundred forty-four billion, four hundred ninety-three million, nine hundred forty-two thousand, seventy-nine".