13424433515540 has 24 divisors (see below), whose sum is σ = 28192712873640. Its totient is φ = 5369506265088.

The previous prime is 13424433515527. The next prime is 13424433515557. The reversal of 13424433515540 is 4551533442431.

It can be written as a sum of positive squares in 4 ways, for example, as 2243087317636 + 11181346197904 = 1497694^2 + 3343852^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13424433515491 and 13424433515500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16284005 + ... + 17088524.

It is an arithmetic number, because the mean of its divisors is an integer number (1174696369735).

Almost surely, 2^{13424433515540} is an apocalyptic number.

13424433515540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13424433515540 is an abundant number, since it is smaller than the sum of its proper divisors (14768279358100).

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

13424433515540 is a wasteful number, since it uses less digits than its factorization.

13424433515540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33392651 (or 33392649 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 44.

Adding to 13424433515540 its reverse (4551533442431), we get a palindrome (17975966957971).

The spelling of 13424433515540 in words is "thirteen trillion, four hundred twenty-four billion, four hundred thirty-three million, five hundred fifteen thousand, five hundred forty".