13718508400007 has 4 divisors (see below), whose sum is σ = 13718516680560. Its totient is φ = 13718500119456.

The previous prime is 13718508399971. The next prime is 13718508400013. The reversal of 13718508400007 is 70000480581731.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13718508400007 - 2¹⁶ = 13718508334471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13718508400067) 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, 705218 + ... + 5285295.

It is an arithmetic number, because the mean of its divisors is an integer number (3429629170140).

Almost surely, 2^{13718508400007} is an apocalyptic number.

13718508400007 is a deficient number, since it is larger than the sum of its proper divisors (8280553).

13718508400007 is an equidigital number, since it uses as much as digits as its factorization.

13718508400007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8280552.

The product of its (nonzero) digits is 188160, while the sum is 44.

Adding to 13718508400007 its reverse (70000480581731), we get a palindrome (83718988981738).

The spelling of 13718508400007 in words is "thirteen trillion, seven hundred eighteen billion, five hundred eight million, four hundred thousand, seven".