12642129682 has 32 divisors (see below), whose sum is σ = 23634777600. Its totient is φ = 4937969088.

The previous prime is 12642129677. The next prime is 12642129719. The reversal of 12642129682 is 28692124621.

12642129682 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12642129682² (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 in 15 ways as a sum of consecutive naturals, for example, 425257 + ... + 454012.

It is an arithmetic number, because the mean of its divisors is an integer number (738586800).

Almost surely, 2^12642129682 is an apocalyptic number.

12642129682 is a deficient number, since it is larger than the sum of its proper divisors (10992647918).

12642129682 is a wasteful number, since it uses less digits than its factorization.

12642129682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879370.

The product of its digits is 165888, while the sum is 43.

The spelling of 12642129682 in words is "twelve billion, six hundred forty-two million, one hundred twenty-nine thousand, six hundred eighty-two".