13291277543 has 4 divisors (see below), whose sum is σ = 13293397920. Its totient is φ = 13289157168.

The previous prime is 13291277521. The next prime is 13291277557. The reversal of 13291277543 is 34577219231.

13291277543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34577219231 = 42283 ⋅817757.

It is a cyclic number.

It is not a de Polignac number, because 13291277543 - 2⁶ = 13291277479 is a prime.

It is a super-2 number, since 2×13291277543² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 13291277494 and 13291277503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13291207543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1050758 + ... + 1063331.

It is an arithmetic number, because the mean of its divisors is an integer number (3323349480).

Almost surely, 2^13291277543 is an apocalyptic number.

13291277543 is a deficient number, since it is larger than the sum of its proper divisors (2120377).

13291277543 is an equidigital number, since it uses as much as digits as its factorization.

13291277543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2120376.

The product of its digits is 317520, while the sum is 44.

The spelling of 13291277543 in words is "thirteen billion, two hundred ninety-one million, two hundred seventy-seven thousand, five hundred forty-three".