13543535543444 has 12 divisors (see below), whose sum is σ = 23702856750804. Its totient is φ = 6771290757504.

The previous prime is 13543535543429. The next prime is 13543535543471. The reversal of 13543535543444 is 44434553534531.

It can be written as a sum of positive squares in 2 ways, for example, as 8928514515844 + 4615021027600 = 2988062^2 + 2148260^2 .

It is a super-2 number, since 2×13543535543444² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 119189669 + ... + 119303244.

It is an arithmetic number, because the mean of its divisors is an integer number (1975238062567).

Almost surely, 2^{13543535543444} is an apocalyptic number.

It is an amenable number.

13543535543444 is a deficient number, since it is larger than the sum of its proper divisors (10159321207360).

13543535543444 is a wasteful number, since it uses less digits than its factorization.

13543535543444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238507114 (or 238507112 counting only the distinct ones).

The product of its digits is 51840000, while the sum is 53.

The spelling of 13543535543444 in words is "thirteen trillion, five hundred forty-three billion, five hundred thirty-five million, five hundred forty-three thousand, four hundred forty-four".