12126884018 has 8 divisors (see below), whose sum is σ = 18191724012. Its totient is φ = 6062976016.

The previous prime is 12126884009. The next prime is 12126884041. The reversal of 12126884018 is 81048862121.

It can be written as a sum of positive squares in 2 ways, for example, as 9139933609 + 2986950409 = 95603^2 + 54653^2 .

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

It is a super-2 number, since 2×12126884018² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199505 + ... + 253092.

Almost surely, 2^12126884018 is an apocalyptic number.

12126884018 is a deficient number, since it is larger than the sum of its proper divisors (6064839994).

12126884018 is a wasteful number, since it uses less digits than its factorization.

12126884018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465996.

The product of its (nonzero) digits is 49152, while the sum is 41.

The spelling of 12126884018 in words is "twelve billion, one hundred twenty-six million, eight hundred eighty-four thousand, eighteen".