126641986612 has 6 divisors (see below), whose sum is σ = 221623476578. Its totient is φ = 63320993304.

The previous prime is 126641986609. The next prime is 126641986633. The reversal of 126641986612 is 216689146621.

126641986612 is digitally balanced in base 3, 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., 66545425296 + 60096561316 = 257964^2 + 245146^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 126641986612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15830248323 + ... + 15830248330.

Almost surely, 2^126641986612 is an apocalyptic number.

It is an amenable number.

126641986612 is a deficient number, since it is larger than the sum of its proper divisors (94981489966).

126641986612 is a wasteful number, since it uses less digits than its factorization.

126641986612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31660496657 (or 31660496655 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 52.

The spelling of 126641986612 in words is "one hundred twenty-six billion, six hundred forty-one million, nine hundred eighty-six thousand, six hundred twelve".