12929655817 has 8 divisors (see below), whose sum is σ = 14059433024. Its totient is φ = 11819191248.

The previous prime is 12929655793. The next prime is 12929655833. The reversal of 12929655817 is 71855692921.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12929655817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12929655517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4826763 + ... + 4829440.

It is an arithmetic number, because the mean of its divisors is an integer number (1757429128).

Almost surely, 2^12929655817 is an apocalyptic number.

It is an amenable number.

12929655817 is a deficient number, since it is larger than the sum of its proper divisors (1129777207).

12929655817 is a wasteful number, since it uses less digits than its factorization.

12929655817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9656319.

The product of its digits is 2721600, while the sum is 55.

It can be divided in two parts, 12929 and 655817, that added together give a triangular number (668746 = T₁₁₅₆).

The spelling of 12929655817 in words is "twelve billion, nine hundred twenty-nine million, six hundred fifty-five thousand, eight hundred seventeen".