144445890363839 has 4 divisors (see below), whose sum is σ = 147968960860560. Its totient is φ = 140922819867120.

The previous prime is 144445890363793. The next prime is 144445890363847. The reversal of 144445890363839 is 938363098544441.

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 144445890363839 - 2⁸ = 144445890363583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144445890963839) 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, 1761535248299 + ... + 1761535248380.

It is an arithmetic number, because the mean of its divisors is an integer number (36992240215140).

Almost surely, 2^{144445890363839} is an apocalyptic number.

144445890363839 is a deficient number, since it is larger than the sum of its proper divisors (3523070496721).

144445890363839 is an equidigital number, since it uses as much as digits as its factorization.

144445890363839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3523070496720.

The product of its (nonzero) digits is 1074954240, while the sum is 71.

The spelling of 144445890363839 in words is "one hundred forty-four trillion, four hundred forty-five billion, eight hundred ninety million, three hundred sixty-three thousand, eight hundred thirty-nine".