12685726412 has 12 divisors (see below), whose sum is σ = 22234338000. Its totient is φ = 6333058416.

The previous prime is 12685726379. The next prime is 12685726433. The reversal of 12685726412 is 21462758621.

It is a super-2 number, since 2×12685726412² (a number of 21 digits) contains 22 as substring.

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, 2448287 + ... + 2453462.

It is an arithmetic number, because the mean of its divisors is an integer number (1852861500).

Almost surely, 2^12685726412 is an apocalyptic number.

It is an amenable number.

12685726412 is a deficient number, since it is larger than the sum of its proper divisors (9548611588).

12685726412 is a wasteful number, since it uses less digits than its factorization.

12685726412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4902400 (or 4902398 counting only the distinct ones).

The product of its digits is 322560, while the sum is 44.

The spelling of 12685726412 in words is "twelve billion, six hundred eighty-five million, seven hundred twenty-six thousand, four hundred twelve".