12817031708 has 24 divisors (see below), whose sum is σ = 24210241440. Its totient is φ = 5902067520.

The previous prime is 12817031707. The next prime is 12817031729. The reversal of 12817031708 is 80713071821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12817031707) 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 7 ways as a sum of consecutive naturals, for example, 257903 + ... + 303558.

It is an arithmetic number, because the mean of its divisors is an integer number (1008760060).

Almost surely, 2^12817031708 is an apocalyptic number.

It is an amenable number.

12817031708 is a deficient number, since it is larger than the sum of its proper divisors (11393209732).

12817031708 is a wasteful number, since it uses less digits than its factorization.

12817031708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561917 (or 561915 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 38.

The spelling of 12817031708 in words is "twelve billion, eight hundred seventeen million, thirty-one thousand, seven hundred eight".