14443552021540 has 12 divisors (see below), whose sum is σ = 30331459245276. Its totient is φ = 5777420808608.

The previous prime is 14443552021523. The next prime is 14443552021559. The reversal of 14443552021540 is 4512025534441.

It can be written as a sum of positive squares in 2 ways, for example, as 10032308733924 + 4411243287616 = 3167382^2 + 2100296^2 .

It is a junction number, because it is equal to n+sod(n) for n = 14443552021493 and 14443552021502.

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, 361088800519 + ... + 361088800558.

It is an arithmetic number, because the mean of its divisors is an integer number (2527621603773).

Almost surely, 2^{14443552021540} is an apocalyptic number.

14443552021540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14443552021540 is an abundant number, since it is smaller than the sum of its proper divisors (15887907223736).

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

14443552021540 is a wasteful number, since it uses less digits than its factorization.

14443552021540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722177601086 (or 722177601084 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 40.

Adding to 14443552021540 its reverse (4512025534441), we get a palindrome (18955577555981).

The spelling of 14443552021540 in words is "fourteen trillion, four hundred forty-three billion, five hundred fifty-two million, twenty-one thousand, five hundred forty".