13543018353 has 6 divisors (see below), whose sum is σ = 19562137634. Its totient is φ = 9028678896.

The previous prime is 13543018319. The next prime is 13543018381. The reversal of 13543018353 is 35381034531.

It can be written as a sum of positive squares in only one way, i.e., 13518247824 + 24770529 = 116268^2 + 4977^2 .

It is not a de Polignac number, because 13543018353 - 2⁹ = 13543017841 is a prime.

It is a super-2 number, since 2×13543018353² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13543018553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 752389900 + ... + 752389917.

Almost surely, 2^13543018353 is an apocalyptic number.

It is an amenable number.

13543018353 is a deficient number, since it is larger than the sum of its proper divisors (6019119281).

13543018353 is a wasteful number, since it uses less digits than its factorization.

13543018353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504779823 (or 1504779820 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 13543018353 in words is "thirteen billion, five hundred forty-three million, eighteen thousand, three hundred fifty-three".