13818659871745 has 8 divisors (see below), whose sum is σ = 16582413191616. Its totient is φ = 11054913667056.

The previous prime is 13818659871727. The next prime is 13818659871761. The reversal of 13818659871745 is 54717895681831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13818659871745 - 2³¹ = 13816512388097 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4524444 + ... + 6935986.

It is an arithmetic number, because the mean of its divisors is an integer number (2072801648952).

Almost surely, 2^{13818659871745} is an apocalyptic number.

It is an amenable number.

13818659871745 is a deficient number, since it is larger than the sum of its proper divisors (2763753319871).

13818659871745 is a wasteful number, since it uses less digits than its factorization.

13818659871745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3557591.

The product of its digits is 406425600, while the sum is 73.

The spelling of 13818659871745 in words is "thirteen trillion, eight hundred eighteen billion, six hundred fifty-nine million, eight hundred seventy-one thousand, seven hundred forty-five".