144228579939 has 8 divisors (see below), whose sum is σ = 213671970320. Its totient is φ = 96152386608.

The previous prime is 144228579919. The next prime is 144228579949. The reversal of 144228579939 is 939975822441.

144228579939 is a `hidden beast` number, since 1 + 4 + 4 + 2 + 28 + 579 + 9 + 39 = 666.

It is not a de Polignac number, because 144228579939 - 2²⁰ = 144227531363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144228579919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2670899602 + ... + 2670899655.

It is an arithmetic number, because the mean of its divisors is an integer number (26708996290).

Almost surely, 2^144228579939 is an apocalyptic number.

144228579939 is a deficient number, since it is larger than the sum of its proper divisors (69443390381).

144228579939 is an equidigital number, since it uses as much as digits as its factorization.

144228579939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5341799266 (or 5341799260 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 63.

The spelling of 144228579939 in words is "one hundred forty-four billion, two hundred twenty-eight million, five hundred seventy-nine thousand, nine hundred thirty-nine".