144269378813 has 6 divisors (see below), whose sum is σ = 167823563166. Its totient is φ = 123659467512.

The previous prime is 144269378809. The next prime is 144269378863. The reversal of 144269378813 is 318873962441.

It can be written as a sum of positive squares in only one way, i.e., 143037509209 + 1231869604 = 378203^2 + 35098^2 .

It is not a de Polignac number, because 144269378813 - 2² = 144269378809 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144269378863) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1472136470 + ... + 1472136567.

It is an arithmetic number, because the mean of its divisors is an integer number (27970593861).

Almost surely, 2^144269378813 is an apocalyptic number.

It is an amenable number.

144269378813 is a deficient number, since it is larger than the sum of its proper divisors (23554184353).

144269378813 is an equidigital number, since it uses as much as digits as its factorization.

144269378813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2944273051 (or 2944273044 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 56.

The spelling of 144269378813 in words is "one hundred forty-four billion, two hundred sixty-nine million, three hundred seventy-eight thousand, eight hundred thirteen".