1318682818686 has 32 divisors (see below), whose sum is σ = 2773035684000. Its totient is φ = 417446225280.

The previous prime is 1318682818681. The next prime is 1318682818799. The reversal of 1318682818686 is 6868182868131.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1318682818681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62109361 + ... + 62130588.

It is an arithmetic number, because the mean of its divisors is an integer number (86657365125).

Almost surely, 2^{1318682818686} is an apocalyptic number.

1318682818686 is an abundant number, since it is smaller than the sum of its proper divisors (1454352865314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1318682818686 is a wasteful number, since it uses less digits than its factorization.

1318682818686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124240044.

The product of its digits is 42467328, while the sum is 66.

The spelling of 1318682818686 in words is "one trillion, three hundred eighteen billion, six hundred eighty-two million, eight hundred eighteen thousand, six hundred eighty-six".