13518326747 has 4 divisors (see below), whose sum is σ = 14313522456. Its totient is φ = 12723131040.

The previous prime is 13518326743. The next prime is 13518326749. The reversal of 13518326747 is 74762381531.

It is a happy number.

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 13518326747 - 2² = 13518326743 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13518326743) 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, 397597829 + ... + 397597862.

It is an arithmetic number, because the mean of its divisors is an integer number (3578380614).

Almost surely, 2^13518326747 is an apocalyptic number.

13518326747 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

13518326747 is a deficient number, since it is larger than the sum of its proper divisors (795195709).

13518326747 is an equidigital number, since it uses as much as digits as its factorization.

13518326747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795195708.

The product of its digits is 846720, while the sum is 47.

The spelling of 13518326747 in words is "thirteen billion, five hundred eighteen million, three hundred twenty-six thousand, seven hundred forty-seven".