12917178796 has 6 divisors (see below), whose sum is σ = 22605062900. Its totient is φ = 6458589396.

The previous prime is 12917178793. The next prime is 12917178803. The reversal of 12917178796 is 69787171921.

It is a self number, because there is not a number n which added to its sum of digits gives 12917178796.

It is not an unprimeable number, because it can be changed into a prime (12917178793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1614647346 + ... + 1614647353.

Almost surely, 2^12917178796 is an apocalyptic number.

It is an amenable number.

12917178796 is a deficient number, since it is larger than the sum of its proper divisors (9687884104).

12917178796 is a wasteful number, since it uses less digits than its factorization.

12917178796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3229294703 (or 3229294701 counting only the distinct ones).

The product of its digits is 2667168, while the sum is 58.

The spelling of 12917178796 in words is "twelve billion, nine hundred seventeen million, one hundred seventy-eight thousand, seven hundred ninety-six".