12706438938825 has 12 divisors (see below), whose sum is σ = 21007979045648. Its totient is φ = 6776767434000.

The previous prime is 12706438938803. The next prime is 12706438938833. The reversal of 12706438938825 is 52883983460721.

It is not a de Polignac number, because 12706438938825 - 2²⁶ = 12706371829961 is a prime.

It is a super-2 number, since 2×12706438938825² (a number of 27 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (66) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84709592851 + ... + 84709593000.

It is a 1-persistent number, because it is pandigital, but 2⋅12706438938825 = 25412877877650 is not.

Almost surely, 2^{12706438938825} is an apocalyptic number.

12706438938825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12706438938825 is a deficient number, since it is larger than the sum of its proper divisors (8301540106823).

12706438938825 is a wasteful number, since it uses less digits than its factorization.

12706438938825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169419185864 (or 169419185859 counting only the distinct ones).

The product of its (nonzero) digits is 139345920, while the sum is 66.

The spelling of 12706438938825 in words is "twelve trillion, seven hundred six billion, four hundred thirty-eight million, nine hundred thirty-eight thousand, eight hundred twenty-five".