12681693412 has 24 divisors (see below), whose sum is σ = 23364652640. Its totient is φ = 6006182400.

The previous prime is 12681693407. The next prime is 12681693467. The reversal of 12681693412 is 21439618621.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 873412 + ... + 887812.

Almost surely, 2^12681693412 is an apocalyptic number.

It is an amenable number.

12681693412 is a deficient number, since it is larger than the sum of its proper divisors (10682959228).

12681693412 is a wasteful number, since it uses less digits than its factorization.

12681693412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26011 (or 26009 counting only the distinct ones).

The product of its digits is 124416, while the sum is 43.

The spelling of 12681693412 in words is "twelve billion, six hundred eighty-one million, six hundred ninety-three thousand, four hundred twelve".