12856629308795 has 4 divisors (see below), whose sum is σ = 15427955170560. Its totient is φ = 10285303447032.

The previous prime is 12856629308767. The next prime is 12856629308801. The reversal of 12856629308795 is 59780392665821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12856629308795 - 2²⁰ = 12856628260219 is a prime.

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, 1285662930875 + ... + 1285662930884.

It is an arithmetic number, because the mean of its divisors is an integer number (3856988792640).

Almost surely, 2^{12856629308795} is an apocalyptic number.

12856629308795 is a deficient number, since it is larger than the sum of its proper divisors (2571325861765).

12856629308795 is an equidigital number, since it uses as much as digits as its factorization.

12856629308795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2571325861764.

The product of its (nonzero) digits is 391910400, while the sum is 71.

The spelling of 12856629308795 in words is "twelve trillion, eight hundred fifty-six billion, six hundred twenty-nine million, three hundred eight thousand, seven hundred ninety-five".