12084879021 has 8 divisors (see below), whose sum is σ = 16114171584. Its totient is φ = 8056086240.

The previous prime is 12084879019. The next prime is 12084879041. The reversal of 12084879021 is 12097848021.

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

It is not a de Polignac number, because 12084879021 - 2¹ = 12084879019 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12084879041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64321 + ... + 168246.

It is an arithmetic number, because the mean of its divisors is an integer number (2014271448).

Almost surely, 2^12084879021 is an apocalyptic number.

It is an amenable number.

12084879021 is a deficient number, since it is larger than the sum of its proper divisors (4029292563).

12084879021 is a wasteful number, since it uses less digits than its factorization.

12084879021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249891.

The product of its (nonzero) digits is 64512, while the sum is 42.

The spelling of 12084879021 in words is "twelve billion, eighty-four million, eight hundred seventy-nine thousand, twenty-one".