12685283729 has 8 divisors (see below), whose sum is σ = 12749026752. Its totient is φ = 12621646000.

The previous prime is 12685283717. The next prime is 12685283777. The reversal of 12685283729 is 92738258621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12685283729 - 2⁸ = 12685283473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12685283789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221027 + ... + 272439.

It is an arithmetic number, because the mean of its divisors is an integer number (1593628344).

Almost surely, 2^12685283729 is an apocalyptic number.

It is an amenable number.

12685283729 is a deficient number, since it is larger than the sum of its proper divisors (63743023).

12685283729 is an equidigital number, since it uses as much as digits as its factorization.

12685283729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52647.

The product of its digits is 2903040, while the sum is 53.

The spelling of 12685283729 in words is "twelve billion, six hundred eighty-five million, two hundred eighty-three thousand, seven hundred twenty-nine".