313986791663 has 4 divisors (see below), whose sum is σ = 324813922440. Its totient is φ = 303159660888.

The previous prime is 313986791627. The next prime is 313986791681. The reversal of 313986791663 is 366197689313.

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 313986791663 - 2¹⁴ = 313986775279 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313986791596 and 313986791605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313986791683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5413565345 + ... + 5413565402.

It is an arithmetic number, because the mean of its divisors is an integer number (81203480610).

Almost surely, 2^313986791663 is an apocalyptic number.

313986791663 is a deficient number, since it is larger than the sum of its proper divisors (10827130777).

313986791663 is a wasteful number, since it uses less digits than its factorization.

313986791663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10827130776.

The product of its digits is 26453952, while the sum is 62.

The spelling of 313986791663 in words is "three hundred thirteen billion, nine hundred eighty-six million, seven hundred ninety-one thousand, six hundred sixty-three".