12084166877 has 4 divisors (see below), whose sum is σ = 12720175680. Its totient is φ = 11448158076.

The previous prime is 12084166817. The next prime is 12084166921. The reversal of 12084166877 is 77866148021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77866148021 = 397 ⋅196136393.

It is a cyclic number.

It is not a de Polignac number, because 12084166877 - 2¹⁴ = 12084150493 is a prime.

It is a super-2 number, since 2×12084166877² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12084166807) 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, 318004373 + ... + 318004410.

It is an arithmetic number, because the mean of its divisors is an integer number (3180043920).

Almost surely, 2^12084166877 is an apocalyptic number.

It is an amenable number.

12084166877 is a deficient number, since it is larger than the sum of its proper divisors (636008803).

12084166877 is an equidigital number, since it uses as much as digits as its factorization.

12084166877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636008802.

The product of its (nonzero) digits is 903168, while the sum is 50.

The spelling of 12084166877 in words is "twelve billion, eighty-four million, one hundred sixty-six thousand, eight hundred seventy-seven".