12659129064 has 40 divisors (see below), whose sum is σ = 35457284610. Its totient is φ = 4219709472.

The previous prime is 12659129057. The next prime is 12659129081. The reversal of 12659129064 is 46092195621.

It can be written as a sum of positive squares in only one way, i.e., 9733400964 + 2925728100 = 98658^2 + 54090^2 .

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 9767199 + ... + 9768494.

Almost surely, 2^12659129064 is an apocalyptic number.

It is an amenable number.

12659129064 is an abundant number, since it is smaller than the sum of its proper divisors (22798155546).

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

12659129064 is a wasteful number, since it uses less digits than its factorization.

12659129064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19535711 (or 19535698 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 12659129064 in words is "twelve billion, six hundred fifty-nine million, one hundred twenty-nine thousand, sixty-four".