12126516876 has 18 divisors (see below), whose sum is σ = 30653139972. Its totient is φ = 4042172280.

The previous prime is 12126516841. The next prime is 12126516881. The reversal of 12126516876 is 67861562121.

12126516876 is a `hidden beast` number, since 1 + 2 + 126 + 516 + 8 + 7 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

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 5 ways as a sum of consecutive naturals, for example, 168423810 + ... + 168423881.

Almost surely, 2^12126516876 is an apocalyptic number.

It is an amenable number.

12126516876 is an abundant number, since it is smaller than the sum of its proper divisors (18526623096).

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

12126516876 is a wasteful number, since it uses less digits than its factorization.

12126516876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336847701 (or 336847696 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The spelling of 12126516876 in words is "twelve billion, one hundred twenty-six million, five hundred sixteen thousand, eight hundred seventy-six".