144428728714 has 8 divisors (see below), whose sum is σ = 216704285028. Its totient is φ = 72193967040.

The previous prime is 144428728693. The next prime is 144428728747. The reversal of 144428728714 is 417827824441.

It can be written as a sum of positive squares in 2 ways, for example, as 130180248025 + 14248480689 = 360805^2 + 119367^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10189807 + ... + 10203970.

Almost surely, 2^144428728714 is an apocalyptic number.

144428728714 is a deficient number, since it is larger than the sum of its proper divisors (72275556314).

144428728714 is a wasteful number, since it uses less digits than its factorization.

144428728714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20397320.

The product of its digits is 3211264, while the sum is 52.

The spelling of 144428728714 in words is "one hundred forty-four billion, four hundred twenty-eight million, seven hundred twenty-eight thousand, seven hundred fourteen".