12819691696 has 20 divisors (see below), whose sum is σ = 28386460432. Its totient is φ = 5494153536.

The previous prime is 12819691667. The next prime is 12819691727. The reversal of 12819691696 is 69619691821.

It is a self number, because there is not a number n which added to its sum of digits gives 12819691696.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57230655 + ... + 57230878.

Almost surely, 2^12819691696 is an apocalyptic number.

12819691696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12819691696 is an abundant number, since it is smaller than the sum of its proper divisors (15566768736).

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

12819691696 is a wasteful number, since it uses less digits than its factorization.

12819691696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114461548 (or 114461542 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 58.

The spelling of 12819691696 in words is "twelve billion, eight hundred nineteen million, six hundred ninety-one thousand, six hundred ninety-six".