12688686729607 has 8 divisors (see below), whose sum is σ = 14607205579296. Its totient is φ = 10796630209152.

The previous prime is 12688686729601. The next prime is 12688686729689. The reversal of 12688686729607 is 70692768688621.

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

It is a cyclic number.

It is not a de Polignac number, because 12688686729607 - 2¹⁹ = 12688686205319 is a prime.

It is a super-2 number, since 2×12688686729607² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12688686729601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6615581278 + ... + 6615583195.

It is an arithmetic number, because the mean of its divisors is an integer number (1825900697412).

Almost surely, 2^{12688686729607} is an apocalyptic number.

12688686729607 is a deficient number, since it is larger than the sum of its proper divisors (1918518849689).

12688686729607 is a wasteful number, since it uses less digits than its factorization.

12688686729607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13231164617.

The product of its (nonzero) digits is 1170505728, while the sum is 76.

The spelling of 12688686729607 in words is "twelve trillion, six hundred eighty-eight billion, six hundred eighty-six million, seven hundred twenty-nine thousand, six hundred seven".