13500811743 has 4 divisors (see below), whose sum is σ = 18001082328. Its totient is φ = 9000541160.

The previous prime is 13500811733. The next prime is 13500811769. The reversal of 13500811743 is 34711800531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13500811743 - 2¹² = 13500807647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13500811733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2250135288 + ... + 2250135293.

It is an arithmetic number, because the mean of its divisors is an integer number (4500270582).

Almost surely, 2^13500811743 is an apocalyptic number.

13500811743 is a deficient number, since it is larger than the sum of its proper divisors (4500270585).

13500811743 is an equidigital number, since it uses as much as digits as its factorization.

13500811743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4500270584.

The product of its (nonzero) digits is 10080, while the sum is 33.

The spelling of 13500811743 in words is "thirteen billion, five hundred million, eight hundred eleven thousand, seven hundred forty-three".