14443728660 has 72 divisors (see below), whose sum is σ = 43919988840. Its totient is φ = 3842224128.

The previous prime is 14443728659. The next prime is 14443728671. The reversal of 14443728660 is 6682734441.

14443728660 is a `hidden beast` number, since 1 + 4 + 443 + 72 + 86 + 60 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1830641796 + 12613086864 = 42786^2 + 112308^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24477 + ... + 171716.

It is an arithmetic number, because the mean of its divisors is an integer number (609999845).

Almost surely, 2^14443728660 is an apocalyptic number.

14443728660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14443728660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21959994420).

14443728660 is an abundant number, since it is smaller than the sum of its proper divisors (29476260180).

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

14443728660 is a wasteful number, since it uses less digits than its factorization.

14443728660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196617 (or 196612 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 45.

The spelling of 14443728660 in words is "fourteen billion, four hundred forty-three million, seven hundred twenty-eight thousand, six hundred sixty".