12929434686486 has 96 divisors (see below), whose sum is σ = 29995993973088. Its totient is φ = 4010793845760.

The previous prime is 12929434686481. The next prime is 12929434686491. The reversal of 12929434686486 is 68468643492921.

It is a happy number.

12929434686486 is a `hidden beast` number, since 1 + 2 + 9 + 29 + 4 + 3 + 46 + 86 + 486 = 666.

It is an interprime number because it is at equal distance from previous prime (12929434686481) and next prime (12929434686491).

It is a super-4 number, since 4×12929434686486⁴ (a number of 54 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

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 47 ways as a sum of consecutive naturals, for example, 10521616 + ... + 11686028.

It is an arithmetic number, because the mean of its divisors is an integer number (312458270553).

Almost surely, 2^{12929434686486} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12929434686486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14997996986544).

12929434686486 is an abundant number, since it is smaller than the sum of its proper divisors (17066559286602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12929434686486 is a wasteful number, since it uses less digits than its factorization.

12929434686486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164846 (or 1164843 counting only the distinct ones).

The product of its digits is 859963392, while the sum is 72.

The spelling of 12929434686486 in words is "twelve trillion, nine hundred twenty-nine billion, four hundred thirty-four million, six hundred eighty-six thousand, four hundred eighty-six".