12929434686487 has 16 divisors (see below), whose sum is σ = 14127612789888. Its totient is φ = 11735065248480.

The previous prime is 12929434686481. The next prime is 12929434686491. The reversal of 12929434686487 is 78468643492921.

12929434686487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12929434686487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12929434686481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19912653 + ... + 20551705.

It is an arithmetic number, because the mean of its divisors is an integer number (882975799368).

Almost surely, 2^{12929434686487} is an apocalyptic number.

12929434686487 is a deficient number, since it is larger than the sum of its proper divisors (1198178103401).

12929434686487 is a wasteful number, since it uses less digits than its factorization.

12929434686487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642030.

The product of its digits is 1003290624, while the sum is 73.

The spelling of 12929434686487 in words is "twelve trillion, nine hundred twenty-nine billion, four hundred thirty-four million, six hundred eighty-six thousand, four hundred eighty-seven".