12689176126 has 8 divisors (see below), whose sum is σ = 20764106424. Its totient is φ = 5767807320.

The previous prime is 12689176033. The next prime is 12689176127. The reversal of 12689176126 is 62167198621.

It is a happy number.

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

It is a super-2 number, since 2×12689176126² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12689176126.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12689176127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288390345 + ... + 288390388.

It is an arithmetic number, because the mean of its divisors is an integer number (2595513303).

Almost surely, 2^12689176126 is an apocalyptic number.

12689176126 is a deficient number, since it is larger than the sum of its proper divisors (8074930298).

12689176126 is a wasteful number, since it uses less digits than its factorization.

12689176126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576780746.

The product of its digits is 435456, while the sum is 49.

The spelling of 12689176126 in words is "twelve billion, six hundred eighty-nine million, one hundred seventy-six thousand, one hundred twenty-six".