12867030881 has 4 divisors (see below), whose sum is σ = 13043291652. Its totient is φ = 12690770112.

The previous prime is 12867030823. The next prime is 12867030887. The reversal of 12867030881 is 18803076821.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8215790881 + 4651240000 = 90641^2 + 68200^2 .

It is a cyclic number.

It is not a de Polignac number, because 12867030881 - 2⁶ = 12867030817 is a prime.

It is a super-2 number, since 2×12867030881² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12867030887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88130276 + ... + 88130421.

It is an arithmetic number, because the mean of its divisors is an integer number (3260822913).

Almost surely, 2^12867030881 is an apocalyptic number.

It is an amenable number.

12867030881 is a deficient number, since it is larger than the sum of its proper divisors (176260771).

12867030881 is an equidigital number, since it uses as much as digits as its factorization.

12867030881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176260770.

The product of its (nonzero) digits is 129024, while the sum is 44.

The spelling of 12867030881 in words is "twelve billion, eight hundred sixty-seven million, thirty thousand, eight hundred eighty-one".