144391788424 has 64 divisors (see below), whose sum is σ = 298482085440. Its totient is φ = 65061722880.

The previous prime is 144391788419. The next prime is 144391788449. The reversal of 144391788424 is 424887193441.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11312254 + ... + 11325010.

It is an arithmetic number, because the mean of its divisors is an integer number (4663782585).

Almost surely, 2^144391788424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144391788424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149241042720).

144391788424 is an abundant number, since it is smaller than the sum of its proper divisors (154090297016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144391788424 is a wasteful number, since it uses less digits than its factorization.

144391788424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15350 (or 15346 counting only the distinct ones).

The product of its digits is 6193152, while the sum is 55.

The spelling of 144391788424 in words is "one hundred forty-four billion, three hundred ninety-one million, seven hundred eighty-eight thousand, four hundred twenty-four".