12701659688 has 8 divisors (see below), whose sum is σ = 23815611930. Its totient is φ = 6350829840.

The previous prime is 12701659661. The next prime is 12701659697. The reversal of 12701659688 is 88695610721.

12701659688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8237014564 + 4464645124 = 90758^2 + 66818^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×12701659688² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 793853723 + ... + 793853738.

Almost surely, 2^12701659688 is an apocalyptic number.

It is an amenable number.

12701659688 is a deficient number, since it is larger than the sum of its proper divisors (11113952242).

12701659688 is a wasteful number, since it uses less digits than its factorization.

12701659688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1587707467 (or 1587707463 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 53.

The spelling of 12701659688 in words is "twelve billion, seven hundred one million, six hundred fifty-nine thousand, six hundred eighty-eight".